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int(tanx+cotx)^2dx |
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Answer» Solution :`INT(tanx+cotx)^2dx` =`int(sinx/cosx+cosx/sinx)^2dx` =`int((sin^2x+cos^2x)/(cosxsinx))^2`DX =`int1/(sin^2xcos^2x)dx` =`int(sin^2x+cos^2x)/(sin^2xcos^2x)` `int(sec^2+cosec^2)dx=tanx-cotx+C` |
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