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sin(pi-x)=sinx

2007-04-17 16:28:59 · 2 answers · asked by ChristFirst00 2 in Science & Mathematics Mathematics

2 answers

sin (a-b) = sina*cosb - cosa*sinb

sin (pi -x) = sinPI*cosx - cosPI*sinx

= 0*cos x - -1*sin x = sin x

2007-04-17 16:34:46 · answer #1 · answered by jenh42002 7 · 1 0

sin(pi - x) = sin pi cos x - cos pi sin x = 0 cos x - (-1) sin x = sin x

2007-04-17 16:33:55 · answer #2 · answered by airtime 3 · 0 0

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