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3. Trigonometric Functions
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Q9 of 25 Page 3

Prove that .

Consider LHS ,


As we know,




So,




= tan A


= RHS


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7

Find the principal and general solutions of the equation tan x = √3.

8

Find the value of .

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Prove that (sin 3x + sin x) sin x + (cos 3x – cos x) cos x = 0

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Questions · 25
3. Trigonometric Functions
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