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OpenStudy (anonymous):
Which of the following is not an identity? a. cos^2x cscx-cscx=-sinx b. sinx(cotx+tanx)=secx c. cos^2x-sin^2x=1-2sin^2x d. csc^2x+sec^2x=1 2) Which of the following are identities? check all that apply a. tanx=1/cotx b. cscx=1/secx c. cscx=1/cosx d. cotx=cosx/sinx
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