Question

solution plzzzzz on page ....... it urgent ​

Answer 1

Question :------ Given above in image .......

Formula to be used :-------

• (a+b)(a-b) = (a²-b²) in both LHS and RHS Denominator
• cos(x+y) = cosxcosy - sinxsiny ( in 5th line)

Solution :--------- see solution in image Now......

(Hope it helps you) ...

Answer 2

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