RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 7. Values of Trigonometric Functions at Sum of Difference of Angles

Subject: Maths - Class 11th

Q. No. 21 of MCQ

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Mark the correct alternative in the following:

If and tan A tan B = 2, then

Cos(A-B) =cos(A)cos(B)+sin(A)sin(B)

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