sec^(-1)(-2)-sin^(-1)((1)/(2))

The value of 2sec^(-1) 2 + 2 sin^(-1)(1/2) is

sin(sin^(-1)((1)/(3))+sec^(-1)(3))+cos(tan^(-1)(1/2)+tan^(-1)2) =

e^((sec h ^(-1)""(1)/(2)+tan h^(-1)""(1)/(2)+sin h^(-1)""(1)/(2))=

If (sin^(-1)a)^(2)+(cos^(-1)b)^(2)+(sec^(-1)c)^(2)+(cosec^(-1)d)^(2)=(5pi)^(2)/2 , then the value of (sin^(-1)a)^(2)-(cos^(-1)b)^(2)+(sec^(-1)c)^(2)-(cosec^(-1)d)^(2) is equal to

The value of sin(sin^(-1) (1/3) + sec^(-1) 3)+ cos(tan^(-1) (1/2) + tan^(-1) 2) is……….

The value of sin^(-1)(cos2)-cos^(-1)(sin2)+tan^(-1)(cot4)-cot^(-1)(tan4)+sec^(-1)(cosec6)-cosec^(-1)(sec6) is

The value of sin^(-1)(cos2)-cos^(-1)(sin2)+tan^(-1)(cot4)-cot^(-1)(tan4)+sec^(-1)(cos ec6)-cos ec^(-1)(sec6

Prove: sec^(4)A(1-sin^(4)A)-2tan^(2)A=1