First slide

Trigonometric Identities

Question

$x = a \sec^{2} θ, y = a \tan^{2} θ$ then

Easy

A

$x^{2} + y^{2} = a^{2}$
B

$x^{2} - y^{2} = a^{2}$
C

$x - y = a$
D

$y^{} + x^{} = a^{}$

Solution

$\frac{x}{a} = \sec^{2} θ$ , $\frac{y}{a} = \tan^{2} θ$
$\begin{matrix} \frac{x}{a} - \frac{y}{a} = \sec^{2} θ - \tan^{2} θ = 1 \\ \frac{x}{a} - \frac{y}{a} = 1 \\ x - y = a \end{matrix}$

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