" (12."log_(-)tan[(pi)/(4)+(x)/(2)]|

If x is an acute angle and y=log_(e)[tan((pi)/(4)+(x)/(2))] then cosh x*cosh y

If x=log_(e)[tan((pi)/(4)+(theta)/(2))] then cos hx=

If x=log_(e)[tan((pi)/(4)+(theta)/(2))] then cos hx=

If y= log_e tan ((pi)/(4)+(x)/(2)) then tan h (y)/(2)=

The range of f(x)=sec^(-1)(log_(3)tan x+log_(tan x)3) is [(pi)/(3),(pi)/(2)]uu[(pi)/(2),(2 pi)/(3)][0,(pi)/(2)](c)((2 pi)/(3),pi)(d) none of these

(d)/(dx)(log tan((pi)/(4)+(x)/(2)))=

(d)/(dx)(log tan((pi)/(4)+(x)/(2)))=

int(1)/(cos x+sqrt(3)sin x)dx equals ( i )log(tan((x)/(2)+(pi)/(12)))+c( (ii) log(tan((x)/(2)-(pi)/(12)))+c( iii) (1)/(2)*log(tan((x)/(2)+(pi)/(12)))+c( iv )(1)/(2)*log(tan((x)/(2)-(pi)/(12)))+c

Differentiate log tan((pi)/(4)+(x)/(2)) with respect to x: