Ex 74, 9 sec 2 tan 2 4 Let tan = Diff both sides wrt x sec 2 = = sec 2 Integrating the function sec 2 tan 2 4 Putting value of tan = and = s...
2tanx/1 tan^2x 747969-2tanx/1+tan^2x
Notice, math\tan x\tan 2x=0/math math\tan 2x=\tan x/math math\tan 2x=\tan(x)/math math2x=n\pix/math math2xx=n\pi/math mathx=\frac{n\pi}{3Tri...
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