The value of `cot(15/2)^@+tan(135/2)^@-cot(135/2)^@-tan(15/2)^@` is

tan15^(@)-cot15^(@)=

If cosx-sinalphacotbetasinx=cosa , then the value of tan(x/2) is -tan(alpha/2)cot(beta/2) (b) tan(alpha/2)tan(beta/2) -cot((alphabeta)/2)tan(beta/2) (d) cot(alpha/2)cot(beta/2)

cot (A+15^(@))- tan(A-15^(@))=

The value of (cot30^(@)-cot75^(@))/(tan15^(@)-tan60^(@)) is

If tan15^(@)=2-sqrt(3) then value of tan15^(@)cot75^(@)+tan75^(@)cot15^(@) is

If tan15^(@)=2-sqrt(3) , the value of tan15^(@)cot75^(@)+tan75^(@)cot15^(@) is

Find the value of sin(135^(@))cosec(225^(@))tan(150^(@))cot(315^(@))

Find the value of tan^(-1)((1)/(2)tan2A)+tan^(-1)(cot A)+tan^(-1)(cot^(3)A)