Question

if x=a cos 0 and y = b sin 0 then b^²x^²+a^²y^²=​

Answer 1

Answer:

Correct option is

B

a

2

b

2

x=acosθ;y=bsinθ

cosθ=

a

x

;sinθ=

b

y

cos

2

θ+sin

2

θ=1=

a

2

x

2

+

b

2

y

2

x

2

b

2

+a

2

y

2

=a

2

b

2

.