Prove that- sin 2 - -8-A-2 -sin 2 - -8-A-2 -1- 2 sin A

Using sin ^ 2 A sin ^ 2 B =sin (A+B) sin (A B) we getLHS =sin( π /8+A/2+π /8 A/2 ) #160; sin( π /8+A/2 π /8 A/2 ) #160; =sin( π /4 ) #160; ...

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Values of Trigonometric Ratios

Prove that: ...

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Prove that: ${sin}^{2} (π / 8 - A / 2) - {sin}^{2} (π / 8 - A / 2) = \frac{1}{\sqrt{2}} sin A$

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{sin}^{2} (\frac{π}{8} + \frac{A}{2}) - {sin}^{2} (\frac{π}{8} - \frac{A}{2}) = . . . . . . . . .

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