`cos^(-1)tan(-(5 pi)/(4))`

cos^(-1)(cos((5 pi)/(4)))

cos[tan^(-1){tan((15pi)/4)}]

tan((pi)/(4)+(1)/(2)cos^(-1)x)+tan((pi)/(4)-(1)/(2)cos^(-1)x),x!=0 is equal to

Find the number of solution of the equation ((pi)/(4)+(1)/(2)cos^(-1)x)+tan((pi)/(4)-(1)/(2)cos^(-1)x)=1

tan((pi)/(4)+(1)/(2)cos^(-1)x)+tan((pi)/(4)-(1)/(2)cos^(-1)x),x!=0 is equal to x( b) 2x( c) (2)/(x) (d) none of these

The value of the expression sin^(-1)((sin(22 pi))/(7))+cos^(-1)((cos(5 pi))/(3))+tan^(-1)((tan(5 pi))/(7))+sin^(-1)(cos2) is (a) (17 pi)/(42)-2( b) -2( c) (-pi)/(21)-2( d) noneofthese

Evaluate: tan^(-1)((tan(5 pi))/(6))+cos^(-1){cos((13 pi)/(6))}

If x != 0 , then tan((pi)/4 + 1/2 cos^(-1) x) + tan ((pi)/4 - 1/2 cos^(-1) x) = ......

Let tan^(-1) ( tan. (5pi)/(4))=alpha, tan^(-1) (-tan. (2pi)/(3))=beta , then