Elements of plane and spherical trigonometry . CQ) AP=AB -j- BP=AB -f BQ,AB = AC + CB = AO + CQ,AP + AB = AB -f AC + (BQ= a +
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sin cos tan csc sec cot
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There are two significant trigonometric identities that incorporate cot ...
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Elements of plane and spherical trigonometry . angle is the reciprocal of thetangent of the angle. Thus, cot A AG AGXBG B,G etc. (8) The secant (sec) of an angle is
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sin cos tan O H A H O A H csc O H sec A A cot O
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