SOLUTION: Solve the following trigonometric equation analytically (using identities if necessary for exact values if possible)for values of x for 0<x<2pi.
sin 8x cos 7x - cos 8x sin 7x =
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-> SOLUTION: Solve the following trigonometric equation analytically (using identities if necessary for exact values if possible)for values of x for 0<x<2pi.
sin 8x cos 7x - cos 8x sin 7x =
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Question 641343: Solve the following trigonometric equation analytically (using identities if necessary for exact values if possible)for values of x for 0
sin 8x cos 7x - cos 8x sin 7x = 0
Simplify and use pi as needed. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! sin 8x cos 7x - cos 8x sin 7x = 0
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Formula: sin(x-y) = sinx*cosy - cosx*siny
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Your problem:
sin 8x cos 7x - cos 8x sin 7x = 0
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sin(8x-7x) = 0
sin(x) = 0
x = 0 or pi or 2pi etc.
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Cheers,
Stan H.
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