log[(1+cos(5x/2))/(1-cos(3x/2))]

Differentiate the following w.r.t. x: log sqrt((1+cos((5x)/2))/(1-cos((5x)/2)))

y=log(sqrt((1-cos(3(x)/(2)))/(1+cos(3(x)/(2))))) differentiate wr.t.

Obtain the following integrals : int(cos(5x)+cos(4x))/(1-2cos(3x))dx

[(d)/(dx)[log sqrt((1-cos2x)/(1+cos2x))]

lim_(x rarr oo)(1+((log cos x)/(log cos((x)/(2))))^(2))^(2)

The sum of series log cos((x)/(2))+log((cos)(x)/(2^(2)))+log((cos)(x)/(2^(3)))+.........+log((cos)(x)/(2^(n)))+log((sin)(x)/(2^(n))) is equal to

If y,=(1)/(2)log((1-cos2x)/(1+cos2x)), prove that (dy)/(dx),=2cos ec2x