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Solve tan theta + tan 2theta + tan theta...

Solve `tan theta + tan 2theta + tan theta . tan 2theta = 1`

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PATHFINDER-TRIGONOMETRIC EQUATION AND INVERSE-QUESTION BANK
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  14. Find the general solution of the equation sin 3 alpha = 4 sin alpha si...

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  15. A triangle ABC is such that sin (2A + B) = 1/2 . If A,B,C are in A.P.,...

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