Question

if x=aSinA and y=acosA then find the value of x²+y²​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

x=a sin A

y= a cos A

Now substitute these values in the equation

‘x squared +y squared’

ie. a sin squared A +a cos squared A

we take the ‘a’ out

a(sin squared A +cos squared A )

Now by using the identity ‘sin squared A +cos squared A=1’

We get, a(1)

=a