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fanks for ur help!! but im still a bit confused in the 2nd question, after substituting sec^2x - 1, what do u do? im not sure wat u mean by integrating with respect to theta.. sorry

Hello everybodi, im new here, and i got sum questions i got stuck wif while doing my homework... Show that 1+x/1-x = -1 + (2/1-x) and hence find the indefinite integral of 1+x/1-x with respect to x. Use the identity sec^2 theta = 1 + tan^2 theta to show that (indefinite integral sign) tan^2...