Question

If x=a sin theta, y=a cos theta then prove x^2+y^2=a^2​

Answer 1

Step-by-step explanation:

x = a Sin theta

y = a Cos theta

Now , x² + y²

= a²Sin² theta + a²Cos² theta

= a² ( Sin²theta + Cos²theta )

= a² × 1

= a²

Hence proof

Answer 2

Answer:

the first one is correct answer