1.

sec r(a)fcs sccxrdr.dlxINCERTIre

Answer»

∫(sec2x​/cosec2x)dx​∫(1/cos​​2x)/(1/sin2x)dx

∫(1/cos​2sin) . (sin2x/1)dx

∫tan2x dx

∫(sec2x-1) dx

tanx - x + c

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