हल करना 1/(co * sec(A) - 1) - 1/(co * sec(A) + 1) = 2tan^2 A | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\frac{1}{co\sec\ A-1}-\frac{1}{co\sec\ A+1}=2\tan^{2}A$$