CM : a,0< sin a<1 b,0< cos a <1 c, cot a = $frac{1}{tan a}$ d , $sina^{2}$ + $cos a ^{2}$=1

2025-07-02 03:56:40

CM : a,0< sin a<1 b,0< cos a <1 c, cot a = $\frac{1}{tan a}$ d , $sina^{2}$ + $cos a ^{2}$=1

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