Practicing Success
Practicing Success
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What will be the value of sin 10° - 4/3 sin310° ? |
$\frac{1}{3\sqrt{3}}$ $\frac{1}{6}$ $\frac{1}{2\sqrt{3}}$ $\frac{\sqrt{3}}{6}$ |
$\frac{1}{6}$ |
sin 10° - \(\frac{4}{3}\)sin310° = \(\frac{3sin 10° - 4 sin310° }{3}\) We know , 3sin A - 4 sin3A = sin 3A = \(\frac{sin 3 × 10° }{3 }\) = \(\frac{1}{3}\) × \(\frac{1}{2}\) = \(\frac{1}{6}\) |
