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 :

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 _____

the value of (cos(pi))/(2^(2)),(cos(pi))/(2^(3)),(cos(pi))/(2^(4))*(cos(pi))/(2^(10))(sin(pi))/(2(10)) is (a) (1)/(1024) (b) (1)/(512) (c) (1)/(256) (d) (1)/(128)

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