Question

if x=a costheta , y = a sintheta. then x square +y square =​

Answer 1

Answer:

a²

Step-by-step explanation:

x²+y²=a²sin²theta+a²cos²theta

=a²(sin²theta+cos²theta)

=a² [as sin²theta+cos²theta=1]

thanks for posting proper question.

Answer 2

x square + y square

x square + y square => (acos α)sq + (a sin α)sq

α)sq=>a sq [cos sq α + sin sq α]

α)sq=>a sq [cos sq α + sin sq α]=>a^2

(as sin2α + cos2α = 1)

Khushi here✔️✌