Find the principal values of each of the following: `sec^(-1)(2sin(3pi)/4)` (ii) `sec^(-1)(2tan(3pi)/4)`

Find the principal values of each of the following: sec ^(-1)(2(sin(3 pi))/(4))( ii) sec^(-1)(2(tan(3 pi))/(4))

Find the principal value of each of the following: (i) cos^(-1)(sin((4pi)/3)) (ii) cos^(-1)(tan((3pi)/4))

Find the principal value of each of the following :cos^(-1)((sin(4 pi))/(3))( ii) cos^(-1)((tan(3 pi))/(4))

Find the principal values of each of the following: sec^(-1)(-sqrt(2)) (ii) sec^(-1)(2)

Find the principal values of each of the following: sec^(-1)(-sqrt(2))( ii) sec^(-1)(2)

Find the principal values of each of the following: (i) cot^(-1)(-1/(sqrt(3))) (ii) cot^(-1)(tan((3pi)/4))

Find the principal values of each of the following: cot^(-1)(-(1)/(sqrt(3)))( ii) cot^(-1)((tan(3 pi))/(4))

Evaluate each of the following: sec^(-1)(sec(13pi)/4) (ii) sec^(-1)(sec(25pi)/6)

Find the principal value of each of the following: tan^(-1)(cospi/2) (ii) tan^(-1)(2cos(2pi)/3)

Evaluate each of the following sec^(-1) (sec ""(7pi)/(4))