Question

If x=a sinθ and y=a cosθ then find the value of x²+y²


solutions

Given x=a sinθ and y=a cosθ

x²+y²


=(asinθ)²+(acosθ)²



=a² (sin²θ+cos²θ)

=a²
​

Answer 1

Step-by-step explanation:

x^2+y^2

a^2

so

x=acos©

y=asin©

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