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Question

How do you solve simple trigonometric equations ?


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Solution

Solving trigonometric equation :

An equation which have trigonometric functions of an unknown angle is called a trigonometric equation.

Simple trigonometric equations have the form:

sinx=a,cosx=a,tanx=a,cotx=a

Where x is unknown, a is any real number.

If a=0, then

Sinx=0, then x=nπ, where n=0,1,2,3,4,..

Cosx=0, then x=nπ+π2, where n=0,1,2,3,4,.. and so on.

Hence, we can solve simple trigonometric equations by putting different values of a.


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