Answer :


Ideas required to solve the problem:


The general solution of any trigonometric equation is given as –


• sin x = sin y, implies x = nπ + (– 1)ny, where n Z.


• cos x = cos y, implies x = 2nπ ± y, where n Z.


• tan x = tan y, implies x = nπ + y, where n Z.


given,



In all such problems we try to reduce the equation in an equation involving single trigonometric expression.



{ }


{ sin A cos B + cos A sin B = sin (A +B)}



NOTE: We can also make the ratio of cos instead of sin, the answer remains same but the form of answer may look different, when you put values of n you will get same values with both forms


If sin x = sin y, implies x = nπ + (– 1)n y, where n Z




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