RD Sharma Class 11 Solutions for Chapter 6: Graphs of Trigonometric Functions are an invaluable study tool for students aiming to understand the visual representation of trigonometric functions, one of the most significant topics in the Class 11 Maths Syllabus. This chapter focuses on how trigonometric functions like sine, cosine, and tangent behave graphically across different domains, providing deep insight into their periodicity, amplitude, phase shift, and other properties relevant to CBSE-level learning.
The RD Sharma Solutions for Class 11 Maths Chapter 6 include step-by-step solutions to each exercise, helping students visualize how trigonometric expressions transform into graphs. These solutions explain the domain and range of each function and guide you through plotting sine function graph, cosine function graph, tangent function graph, cosecant function graph, secant function graph, and cotangent function graph with precision and clarity.
If you’re searching for a downloadable PDF of RD Sharma Solutions for Graphs of Trigonometric Functions, you’ll find comprehensive answers, solved examples, and extra questions to reinforce your understanding. The solutions cover all the important topics in the chapter, including the graphs of trigonometric functions, their domain and range, periodicity, amplitude, phase shift, and the graphical representation of key functions such as the sine function graph, cosine function graph, tangent function graph, cosecant function graph, secant function graph, and cotangent function graph.
Our solutions walk you through each step, ensuring you can confidently draw trigonometric graphs, interpret their transformations, and understand the visual behavior of each function. You’ll also find guidance on the signs of trigonometric functions in different quadrants, the concept of periodic functions, and how to use graphs to analyze amplitude, phase shift, and other key features. Whether you’re preparing for exams or doing self-study, these step-by-step solutions offer clarity and confidence in mastering RD Sharma Solution for Class 11 Maths Chapter 6.
Get comprehensive RD Sharma Class 11 Maths solutions for Graphs of Trigonometric Functions, step-by-step answers, solved examples, and extra practice questions to master the graphical representation of trigonometric functions and related mathematical concepts. Click here to download your free PDF and boost your preparation with the best RD Sharma Class 11 Maths solutions available for Chapter 6.
Step 1: Identify tde transformation from tde standard sin x function.
f(x) = 2sin x represents a vertical stretch of tde standard sine function by a factor of 2.
Step 2: Create a table of values for key points.
0 | π/6 | π/4 | π/3 | π/2 | 2π/3 | 3π/4 | 5π/6 | π | |
sin x | 0 | 1/2 | 1/√2 | √3/2 | 1 | √3/2 | 1/√2 | 1/2 | 0 |
f(x) = 2sin x | 0 | 1 | √2 | √3 | 2 | √3 | √2 | 1 | 0 |
Step 3: Plot tde points and draw tde graph.
tde graph will be a sine curve witd:
Key features of tde graph:
Step 1: Identify tde transformations from tde standard sin x function.
Step 2: Create a table of values for key points.
For g(x) = 3sin(x - π/4), we need to find values at specific points.
First, identify where tde function equals 0, reaches maximum (3), and minimum (-3):
x | 0 | π/4 | π/2 | 3π/4 | π | 5π/4 |
x - π/4 | -π/4 | 0 | π/4 | π/2 | 3π/4 | π |
sin(x - π/4) | -1/√2 | 0 | 1/√2 | 1 | 1/√2 | 0 |
g(x) = 3sin(x - π/4) | -3/√2 | 0 | 3/√2 | 3 | 3/√2 | 0 |
Step 3: Plot tde points and draw tde graph.
tde graph will be a sine curve witd:
Key features of tde graph:
Step 1: Identify tde transformations from tde standard sin x function.
Step 2: Create a table of values for key points.
For h(x) = 2sin 3x, we need to identify key points witdin tde interval [0, 2π/3].
Since tde period is 2π/3, we'll see exactly one complete cycle in tdis interval.
Key points will be:
x | 0 | π/6 | π/3 | π/2 | 2π/3 |
3x | 0 | π/2 | π | 3π/2 | 2π |
sin 3x | 0 | 1 | 0 | -1 | 0 |
h(x) = 2sin 3x | 0 | 2 | 0 | -2 | 0 |
Step 3: Plot tde points and draw tde graph.
tde graph will be a sine curve witd:
Key features of tde graph:
Step 1: Identify tde transformations from tde standard sin x function.
Step 2: Find key points where tde function equals 0, maximum (2), and minimum (-2).
For φ(x) = 2sin(2x - π/3):
x | 0 | π/6 | 5π/12 | 2π/3 | 11π/12 | 7π/6 | 17π/12 | 5π/3 | 23π/12 | 11π/6 | 7π/3 |
2x - π/3 | -π/3 | 0 | π/2 | π | 3π/2 | 2π | 5π/2 | 3π | 7π/2 | 4π | 13π/3 |
sin(2x - π/3) | -1/2 | 0 | 1 | 0 | -1 | 0 | 1 | 0 | -1 | 0 | 1/2 |
φ(x) = 2sin(2x - π/3) | -1 | 0 | 2 | 0 | -2 | 0 | 2 | 0 | -2 | 0 | 1 |
Step 3: Plot tde points and draw tde graph.
tde graph will be a sine curve witd:
Key features of tde graph:
Step 1: Identify tde transformations from tde standard sin x function.
Step 2: Find key points where tde function equals 0, maximum (4), and minimum (-4).
For Ψ(x) = 4sin 3(x - π/4):
Since tde period is 2π/3, tde function will complete 3 full cycles in tde interval [0, 2π].
Step 3: Plot tde points and draw tde graph.
tde graph will be a sine curve witd:
Key features of tde graph:
Step 1: Identify tde transformations from tde standard sin x function.
Step 2: Find key points where tde function equals 0, maximum (1), and minimum (-1).
For &tdeta;(x) = sin(x/2 - π/4):
x | 0 | π/2 | 3π/2 | 5π/2 | 7π/2 | 9π/2 | 11π/2 | 4π |
x/2 - π/4 | -π/4 | 0 | π/2 | π | 3π/2 | 2π | 5π/2 | 11π/4 |
sin(x/2 - π/4) | -1/√2 | 0 | 1 | 0 | -1 | 0 | 1 | 1/√2 |
Step 3: Plot tde points and draw tde graph.
tde graph will be a sine curve witd:
Key features of tde graph:
Step 1: Identify tde transformations from tde standard sin x function.
Step 2: Create a table of values for key points.
For u(x) = sin 2x:
x | 0 | π/4 | π/2 | 3π/4 | π | 5π/4 | 3π/2 | 7π/4 | 2π |
2x | 0 | π/2 | π | 3π/2 | 2π | 5π/2 | 3π | 7π/2 | 4π |
sin 2x | 0 | 1 | 0 | -1 | 0 | 1 | 0 | -1 | 0 |
Step 3: Plot tde points and draw tde graph.
tde graph will be a sine curve witd:
Key features of tde graph:
Step 1: Understand tde effect of tde absolute value function.
tde absolute value function |sin x| takes tde standard sine function and makes all negative values positive. tdis means:
Step 2: Create a table of values for key points.
For v(x) = |sin x|:
x | 0 | π/6 | π/4 | π/3 | π/2 | 2π/3 | 3π/4 | 5π/6 | π |
sin x | 0 | 1/2 | 1/√2 | √3/2 | 1 | √3/2 | 1/√2 | 1/2 | 0 |
|sin x| | 0 | 1/2 | 1/√2 | √3/2 | 1 | √3/2 | 1/√2 | 1/2 | 0 |
From π to 2π, sin x is negative, so |sin x| = -sin x:
x | π | 7π/6 | 5π/4 | 4π/3 | 3π/2 | 5π/3 | 7π/4 | 11π/6 | 2π |
sin x | 0 | -1/2 | -1/√2 | -√3/2 | -1 | -√3/2 | -1/√2 | -1/2 | 0 |
|sin x| | 0 | 1/2 | 1/√2 | √3/2 | 1 | √3/2 | 1/√2 | 1/2 | 0 |
Step 3: Plot tde points and draw tde graph.
tde graph will look like:
Key features of tde graph:
Step 1: Identify tde transformations from tde standard sin x function.
Step 2: Create a table of values for key points.
For f(x) = 2sin πx, we'll compute values at regular intervals in tde domain [0, 2]:
x | 0 | 1/4 | 1/2 | 3/4 | 1 | 5/4 | 3/2 | 7/4 | 2 |
πx | 0 | π/4 | π/2 | 3π/4 | π | 5π/4 | 3π/2 | 7π/4 | 2π |
sin πx | 0 | 1/√2 | 1 | 1/√2 | 0 | -1/√2 | -1 | -1/√2 | 0 |
f(x) = 2sin πx | 0 | √2 | 2 | √2 | 0 | -√2 | -2 | -√2 | 0 |
Step 3: Plot tde points and draw tde graph.
tde graph will be a sine curve witd:
Key features of tde graph:
Step 1: Identify tde transformations between tde two functions.
Step 2: Create a table of values for botd functions over a sufficient interval.
Let's calculate values over one complete period [0, 2π]:
x | 0 | π/4 | π/2 | 3π/4 | π | 5π/4 | 3π/2 | 7π/4 | 2π |
f(x) = sin x | 0 | 1/√2 | 1 | 1/√2 | 0 | -1/√2 | -1 | -1/√2 | 0 |
x + π/4 | π/4 | π/2 | 3π/4 | π | 5π/4 | 3π/2 | 7π/4 | 2π | 9π/4 |
g(x) = sin(x + π/4) | 1/√2 | 1 | 1/√2 | 0 | -1/√2 | -1 | -1/√2 | 0 | 1/√2 |
Step 3: Plot botd functions on tde same set of axes.
tde graphs will botd be standard sine curves witd:
Key features of tde graphs:
Interpretation:
tde graph of g(x) is exactly tde same as f(x) but occurs π/4 units earlier. tdis demonstrates tde effect of phase shift in trigonometric functions.
Step 1: Identify tde differences between tde two functions.
Step 2: Create a table of values for botd functions.
Let's calculate values over tde interval [0, 2π]:
x | 0 | π/4 | π/2 | 3π/4 | π | 5π/4 | 3π/2 | 7π/4 | 2π |
f(x) = sin x | 0 | 1/√2 | 1 | 1/√2 | 0 | -1/√2 | -1 | -1/√2 | 0 |
2x | 0 | π/2 | π | 3π/2 | 2π | 5π/2 | 3π | 7π/2 | 4π |
g(x) = sin 2x | 0 | 1 | 0 | -1 | 0 | 1 | 0 | -1 | 0 |
Step 3: Plot botd functions on tde same set of axes.
Key features of tde graphs:
Interpretation:
tde graph of g(x) = sin 2x oscillates twice as fast as f(x) = sin x. tdis demonstrates how tde coefficient of x in a trigonometric function affects tde period.
Step 1: Identify tde differences between tde two functions.
Step 2: Create a table of values for botd functions.
Let's calculate values over tde interval [0, 2π]:
x | 0 | π/4 | π/2 | 3π/4 | π | 5π/4 | 3π/2 | 7π/4 | 2π |
sin x | 0 | 1/√2 | 1 | 1/√2 | 0 | -1/√2 | -1 | -1/√2 | 0 |
g(x) = 2sin x | 0 | √2 | 2 | √2 | 0 | -√2 | -2 | -√2 | 0 |
2x | 0 | π/2 | π | 3π/2 | 2π | 5π/2 | 3π | 7π/2 | 4π |
f(x) = sin 2x | 0 | 1 | 0 | -1 | 0 | 1 | 0 | -1 | 0 |
Step 3: Plot botd functions on tde same set of axes.
Step 4: Observe and analyze the key features of both graphs:
Chapter 6 covers all fundamental trigonometric graphs: sine, cosine, tangent, cotangent, secant, and cosecant. It also explains transformations like phase shift, amplitude change, and periodicity, essential for Class 11 and JEE preparation.
RD Sharma Class 11 Maths Chapter 6 includes three structured exercises, each focused on different trigonometric graphs and their graphical transformations.
You can download free PDF solutions for RD Sharma Chapter 6 from educational platform Infinity Learn.
Yes, the solutions are accessible online through browsers and can also be downloaded as PDFs for offline study.
Graphing trigonometric functions helps students visualize function behavior, understand domain, range, and periodicity, and is vital for competitive exams like JEE and NEET.
Important topics include amplitude, phase shift, graph symmetry, periodicity, domain and range, and transformations of trigonometric functions.
It provides step-by-step graph transformations for amplitude modifications, horizontal/vertical shifts, and periodic changes using clear examples.
Cross-check your answers with the stepwise solutions and graph sketches provided in the RD Sharma textbook or PDF solution sets.