# Write the given expression as a function that involves only sin θ, cos θ, or tan θ.

Write the given expression as a function that involves only sin θ, cos θ, or tan θ.

cos(θ + 7π)

asked Feb 19, 2013

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kosine (x+7pi)...

sine & kosine +- 2pi ...same

so kosine(x+7pi)=kosine(x+1 pi)

=-kosine(x)
answered Feb 20, 2013 by anonymous

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