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OpenStudy (anonymous):
(sec A-cosec A) (1+tan A + cot A)=tan A sec A - cot A cosec A prove
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OpenStudy (ajprincess):
secA=1/cosA coseccA=1/sinA tanA=sinA/cosA tan^2A+1=sec^2A cotA=1/tanA Using all this I thnk u can prove
OpenStudy (anonymous):
thanku very much
OpenStudy (ajprincess):
yw
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