indefinite-integration

Question: $\int_{{}}^{{}}{\frac{{{\sin }^{2}}x-{{\cos }^{2}}x}{{{\sin }^{2}}x{{\cos }^{2}}x}dx=}$

1) $\tan x+\cot x+c$

2) $\tan x+\text{cosec}\,x+c$

3) $-\tan x+\cot x+c$

4) $\tan x+\sec x+c$

Solution:

Explanation: No Explanation

Fundamental integration

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