Question

if
cos = x and sin=y. Then prove that x²+y²= 1
​

Answer 1

Answer:

I hope you find the solution helpful :)

Step-by-step explanation:

Given,

         cosα = x

         sinα  = y        (for which α is any angle)

Now,

        x² + y² = cos²α + sin²α

We also know that cos²α + sin²α = 1

Therefore, x² + y² = 1.

Hence,

           proved