(i) Tan (pi/6)=………..

(7pi)/6 radian = ……….. Degree

Prove that cot^2(pi/6)+cosec((5pi)/6)+3tan^2(pi/6)=6

tan ^(-1)(tan((7 pi)/6)) =

Evaluate tan((13pi)/6)

Find the value of the following: sin^2(pi/6)+cos^2(pi/3)-tan^2(pi/4)

Prove that tan (13pi)/12=tan (pi)/12 and express tan (pi)/12 in the form of tan(A-B).

If angle A = 90 ^(@) in the triangle ABC, then tan ^(-1) (( c )/(a+b)) + tan ^(-1) ((b)/(a+c)) is equal to : a)0 b)1 c) (pi)/(4) d) (pi )/(6)

If 0 lt x lt (pi)/(2) , then find tan ((pi)/(4)+ (x)/(2) ) + tan ((pi)/(4) - (x)/(2) )

One of the value of ("cos"(pi)/(6) +i "sin"(pi)/(6))^((1)/(2)) + ("cos"(pi)/(6)- i "sin"(pi)/(6))^((11)/(2)) is

(i)Simplify tan(pi/4+theta)