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Mathematics 8 Online
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?

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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