" 9."tan((pi)/(4)+(pi)/(2))+tan((pi)/(4)-(pi)/(2))=2oo

(sec2x-tan2x) equals a tan(x-(pi)/(4))b)tan((pi)/(4)-x)c cot(x-(pi)/(4))d tan^(2)(x+(pi)/(4))

Range of tan^(-1)((2x)/(1+x^(2))) is (a) [-(pi)/(4),(pi)/(4)] (b) (-(pi)/(2),(pi)/(2))(c)(-(pi)/(2),(pi)/(4)) (d) [(pi)/(4),(pi)/(2)]

(tan(pi/4)+tan(pi/6))/(1-tan(pi/4)tan(pi/6))=?

Simplify tan ((pi)/(4) +A) tan ((pi)/(4)-A)

tan(pi/4+A)-tan(pi/4-A)=

Consider the following : 1. tan((pi)/(6)) 2. tan((3pi)/(4)) 3. tan((5pi)/(4)) tan((2pi)/(3)) What is the correct order ?

"tan"^(2)(pi)/(4) "sin"(pi)/(3) "tan"(pi)/(6) "tan"^(2)(pi)/(3) =

The value of (cot(pi)/(32))-tan(pi)/(32)-2tan(pi)/(16)-4tan(pi)/(8) is

{(tan((pi)/(4)+theta)+tan((pi)/(4)-theta))/(tan((pi)/(4)+theta)-tan((pi)/( 4)-theta)))

Find the value tan((pi)/(5))+2tan((2 pi)/(5))+4cot((4 pi)/(5))