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OpenStudy (anonymous):
which of the following is equivalent to.... 1-cos^2 ϴ/cos^2 ϴ? a.sec^2ϴ b.(csc^2ϴ)-1 c.tan^2 ϴ d.sin^2ϴ answer is C. but how?
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OpenStudy (konradzuse):
you need to look at the double angel formulas and such.
OpenStudy (konradzuse):
sin^2 + cos^2 = 1 1 - cos^2 = sin^2
OpenStudy (konradzuse):
OpenStudy (konradzuse):
make sense?
OpenStudy (anonymous):
nope :-(
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