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How do you express $sin (\frac{π}{4}) \cdot cos (\frac{π}{4})$ $sin(pi/ 4 ) * cos( ( pi) / 4 )$ without using products of trigonometric functions?

1 Answer

A. S. Adikesavan

Feb 17, 2016

1/2 sin $\frac{π}{2}$ $pi/2$ = 1/2

Explanation:

Use sin 2x = 2 sin x cos x.

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