Sin3A-sin3A-sinA-cos3A-cos3A-cosA

G.E.=sin^3A+3sinA 4sin^3A/sinA+cos^3A+4cos^3A 3cosθ/cos A=3 3 sin^2A+3 3 cos^2A=3 ...

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Trigonometric Ratios of Compound Angles

sin3A+sin3A/s...

Question

$\frac{s i n^{3} A + s i n 3 A}{s i n A} + \frac{c o s^{3} A - c o s 3 A}{c o s A}$

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Solution

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\frac{s i n^{3} A + s i n 3 A}{s i n A} + \frac{c o s^{3} A - c o s 3 A}{c o s A}

\frac{S i n^{3} A + c o s^{3} A}{s i n A + c o s A} + \frac{S i n^{3} A - c o s^{3} A}{s i n A - c o s A} = 2

A =

30^{\circ}

\frac{{cos}^{3} A - cos 3 A}{cos A} + \frac{{sin}^{3} A + sin 3 A}{sin A} =

Find the value of $\frac{c o s^{3} A - c o s 3 A}{c o s A}$ + $\frac{s i n^{3} A - s i n 3 A}{s i n A}$

\frac{{sin}^{3} A + sin 3 A}{sin A} + \frac{{cos}^{3} A - cos 3 A}{cos A}

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