Question

Please solve this trigonometry question.​

Answer 1

Answer:

C.

Step-by-step explanation:

xsin

3

θ+ycos

3

θ=sinθcosθ

(xsinθ)sin

2

θ+(ycosθ)cos

2

θ=sinθcosθ

(xsinθ)sin

2

θ+(xsinθ)cos

2

θ=sinθcosθ

xsinθ=sinθcosθ

x=cosθ

Again, ycosθ=xsinθ

ycosθ=cosθsinθ

y=sinθ

Therefore,

x

2

+y

2

=sin

2

θ+cos

2

θ=1.

Answer 2

Answer:

Option c. 1

Step-by-step explanation:

Hope it works!

Have a wonderful day ahead.