plz answer dis question...... Find the value of sin 15^{o} = sin ( π12 )
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You should know that . So When we note that sine is positive in the first quadrant, and check for extraneous solutions which were obtained through squaring, we find that the solution we want is .
sin 15° = sin(45°-30°) = sin 45°cos 30° - cos 45°sin 30° =
Originally Posted by mpx86 sin 15° = sin(45°-30°) = sin 45°cos 30° - cos 45°sin 30° = How DARE you provide such a simple, concise and beautiful solution after mine took 18 lines? :P hahaha. Well played
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