Find the inverse of the rotation matrix(adsbygoogle = window.adsbygoogle || []).push({});

cos(theta) -sin(theta)

sin(theta) cos(theta)

I have no problems finding the inverse of a standard 2x2 matrix, however I am confused by the trig functions.

I guess the determanent would be 2cos(theta) and I would end up with

1/2cos(theta)*(the above 2x2 matrix)

Any assistance is greatly appreciated.

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# Homework Help: Finding inverse of matrix with trig values

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