" 2."cosec sec^(-1)((5)/(4))

sec h^(-1) ((1)/(2)) - "cosec h"^(-1) ((3)/(4)) =

sin^(-1)(4/5)+cos^(-1). 5/13 +sec^(-1)(5/4)+"cosec"^(-1)(13/5) is :

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

sec^(2)(tan^(-1)(2))+cosec^(2)(cot^(-1)(2))=

sec^(-1)(-3/2)+cosec^(-1)(-3/2)=(pi)/2

Prove that: 2sec^(2)A-sec^(4)A-2"cosec"^(2)A+"cosec"^(4)A=cot^(4)A-tan^(4)A

Prove that: 2sec^(2)A-sec^(4)A-2"cosec"^(2)A+"cosec"^(4)A=cot^(4)A-tan^(4)A

sec^(-1)(4)+cosec^(-1)(4)=(pi)/2

The value of 2 sec^(2) theta - sec^(4) theta - 2 cosec^(2)theta + cosec^(4) theta is