:.(v)times cos^(-1)((1)/(sqrt(2))(cos(9 pi)/(10)-sin(9 pi)/(10)))

cos^(-1)((1)/(sqrt(2))(cos.(11pi)/(10)-sin.(pi)/(10))) is :

The value of cos^(-1){(1)/(sqrt(2))(cos((9 pi)/(10))-sin((9 pi)/(10)))}

Find the value of the following inverse trigonometric expression: cos^(-1)(1/(sqrt(2))("cos"(9pi)/10-"sin"(9pi)/10))

Find the value of the following inverse trigonometric expression: cos^(-1)(1/(sqrt(2))("cos"(9pi)/10-"sin"(9pi)/10))

The value of cos^(-1){1/sqrt2(cos((9pi)/10)-sin((9pi)/10))}

The value of cos^(-1){1/(sqrt(2))("cos"(9pi)/10-"sin"(9pi)/10)} is

The principal value of cos^(-1) {1/sqrt2 ("cos"(9pi)/10 - "sin"(9pi)/10)} is :

The principle value of cos^(-1){1/sqrt2("cos"(9pi)/10-"sin"(9pi)/10)} is _____

Find the value of following expression: [(1-cos(pi)/(10)+i sin(pi)/(10))/(1-cos(pi)/(10)-i sin(pi)/(10))]^(10)

cos^(-1)""(2)/(sqrt(5))+sin ^(-1)""(1)/(sqrt(10))=(pi)/(4)