Find the value of following expression: `[(1-cospi/(10)+isinpi/(10))/(1-cospi/(10)-isinpi/(10))]^(10)`

Find the value of the following cos^(-1) (cos 10)

{(1+cospi//8+isinipi//8)/(1+cospi//8-isinpi//8)}^(8)=

A. Find the values of the following. (1) 7-10/2

Solve the following expressions : 8+(-4)+10-(-1)

Find the value of the following inverse trigonometric expression: cos^(-1)(cos 10)

Find the value of the following inverse trigonometric expression: cot^(-1)(cot(-10))

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

Write the value of the expression 1-4sin10^(0)sin70^(@)2sin10^(0)

cospi+isinpi=?