Email
Chat with tutors
logo

Ask Questions, Get Answers

X
 
Questions  >>  CBSE XI  >>  Math  >>  Trigonometric Functions
Answer
Comment
Share
Q)

Prove that $\cos^2A+\cos ^2B-2\cos A\cos B.\cos(A+B)=\sin^2(A+B)$

1 Answer

Home Ask Tuition Questions
Practice
Your payment for is successful.
Continue
...