Please Solve C Question of trigonometry​

question img
  • matematika

    Subject:

    Math
  • Author:

    lee94
  • Created:

    1 year ago

Answers 2

Let a= 1. b= SinA

given from question

(a + b)². - ( a-b)²

= ++2ab -( + -2ab)

= 2ab + 2ab = 4ab

Substituting values of a and b

4 x 1 xSinA = 4SinA = RHS

Answer:

Let a= 1. b= SinA

given from question

(a + b)². - (a-b)²

=a² +b²+2ab-( a² + b² -2ab)

= 2ab + 2ab = 4ab

Substituting values of a and b

4 x 1 xSinA = 4SinA = RHS

If you know the answer add it here!

Can't find the answer?

Log in with Google

or

Forgot your password?

I don't have an account, and I want to Register

Choose a language and a region
How much to ban the user?
1 hour 1 day 100 years