Answers

2014-08-08T20:28:10+05:30
Use x^{2} -  y^{2} on LHS and then apply sin(x) + sin(y) and sin(x) - sin(y) formula on LHS. simplify and it leads to
(1) sin(4x) = 0
(2) cos(6x) = 0
(3) sin(10x) = 0

Solve the three equations for x and you got your answer.

Answer = \frac{n \pi }{4} or  \frac{n \pi }{10} or  \frac{n \pi }{12}
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