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Mathematics 12 Online
OpenStudy (anonymous):

simplify 1/cos(90-alpha)

OpenStudy (jdoe0001):

http://ichthyosapiens.com/School/Math/Trig/ch05CofunctionIdentities.jpg <--- notice thus \(\bf \cfrac{1}{cos(90^o-\alpha)}\implies \cfrac{1}{sin(\alpha)}\implies ?\)

OpenStudy (anonymous):

.09 something

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