Question

eliminate theta from X=a cos theta y= sin theta​

Answer 1

Answer:

cos theta = x/a

sin theta = y

Now, sin^2 theta + cos^2 theta = 1

So,

y^2 + x^2/a^2 = 1

Answer 2

Step-by-step explanation:

cos ø = x/a

sin ø = y

tan ø = sin ø / cos ø

= y / x/ a

= y /x

(we know that sinø =opp / hyp

and also cos ø = adj / hyp

hyp = a = 1)

ø = tan^(-1) |y/x|

or

sin²ø + cos²ø = 1

y ² + x² / a² = 1

(ay)² +x² = a²

if it is a=1

then y²+x² = 1

I am not sure please check the ans