[" The principle solution of "cos x=-(1)/(sqrt(2))],[" is "]

General solution of cos3x=(1)/(sqrt(2)) is

Find the principle solution of cos x=-2 .

Find the principle solution of cot x=-sqrt 3 .

The principle value of cos^-1(-sqrt3)/2) is

find the principle value of cos^(-1)((sqrt3)/2)

find the principle value of cos^(-1)((sqrt3)/2)

Find the general solution: cos x-sin x=(1)/(sqrt(2))

General solution of 2^(sin x)+2^(cos x)=2^(1(1)/(sqrt(2))) is

Find the principle and general solutions of sin x =-sqrt3/2

Find the principle solution of the following, (i) "sin" x=(sqrt(3))/(2) (ii) "tan"x=-(1)/(sqrt(3)) (iii) cot x=-sqrt(3) (iv)cosec x=-2