Math, asked by ryanwalker4051, 5 months ago

(1+cosA)^2+(1-cosA)^2/sin^2A=2(1+2cot^2A)

Answers

Answered by sakshi200736
4

Answer:

Starting with the LHS, the sum would be

1

+

cos

A

+

1

cos

A

(

1

+

cos

A

)

(

1

cos

A

)

=

2

1

cos

2

A

=

2

sin

2

A

=

2

csc

2

A

=

2

(

1

+

cot

2

A

)

=

2

+

2

cot

2

A

Similar questions