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

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

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

tan((pi)/4+1/2"cos"^(-1)a/b)+tan((pi)/4-1/2"cos"^(-1)a/b)=

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

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

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

Simplify (I ) cos ^(-1) ( cos ((13 pi )/(3))) (ii ) tan^(-1) ( tan ((3pi)/(4))) (iii ) sec^(-1) ( sec ((5pi )/(3))) (iv ) sin^(-1) [ sin 10 ]

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

If alpha=tan^(-1)(tan""(5pi)/(4))andbeta=tan^(-1)(-tan""(2pi)/(3)), then