(1+tan ^2 x)(1+cotan^2 x)=sec^2 x cosec^2 x
Saluranedukasion 2024-01-18T15:26:43.000Z
(1+tan ^2 x)(1+cotan^2 x)=sec^2 x cosec^2 x
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(1+tan ^2 x)(1+cotan^2 x)=sec^2 x cosec^2 x