First slide

Trignometry

Question

The value of sin(75°) is

Easy

A

$\frac{\sqrt{3} + 1}{2 \sqrt{2}}$
B

$\frac{\sqrt{3} - 1}{2 \sqrt{2}}$
C

$\frac{\sqrt{3}}{2 \sqrt{2}}$
D

$\frac{1}{2 \sqrt{2}}$

Solution

$\sin (45 + 30) = \sin 45 \cos 30 + \cos 45 \sin 30 ∴ \sin (75) = \frac{1}{\sqrt{2}} \cdot \frac{\sqrt{3}}{2} + \frac{1}{\sqrt{2}} \cdot \frac{1}{2}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App