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Ronch [10]
3 years ago
10

Solve for cos(theta) in sin^2(theta) + cos^2(theta) = 1.

Mathematics
1 answer:
miv72 [106K]3 years ago
3 0
Subtract the sine term and take the square root.
cos(\theta)^{2} = 1 - sin(\theta)^{2}
cos(\theta) = \pm \sqrt{1 - sin(\theta)^{2}}
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