Buktikan identitas:a. cosec^2 theta-2 cosec theta cotan
Saluranedukasion 2024-04-12T21:32:00.000Z
Buktikan identitas:a. cosec^2 theta-2 cosec theta cotan theta+cotan^2 theta=(1-cos theta)/(1+cos theta) b. (cos A cotan A-sin A tan A)/(cosec A-sec A)=1+cos A sin A
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