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Solve the Equation tan theta+ tan 2theta = tan 3theta.

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Trigonometry
Trigonometric Equations (IX)

Solve the equation
tan theta+ tan 2theta = tan 3theta.

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Solution Summary

The Trigonometric Equation tan theta + tan 2theta = tan 3theta is solved. The solution is detailed and well presented.

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We have
tan theta+ tan 2theta = tan 3theta.

Trigonometry
Trigonometric Equations (IX)

By:- Thokchom Sarojkumar Sinha

Solve the equation

Solution:- We have

or,
For
or,

or,

or,

or,

Possibilities are
---------------------------------------(1)

---------------------------------------(2)

---------------------------------------(3)

From (1), we get

...

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