मूल्यांकन कीजिए -
`cot^(-1)(cot4)`.

Which of the following quantities is/are positive? "cos"(tan^(-1)(t a n4)) (b) "sin"(cot^(-1)(cot4)) "tan"(cos^(-1)(cos5)) (d) "cot"(sin^(-1)(sin4))

Which of the following quantities is/are positive? (a) "cos"(tan^(-1)(t a n4)) (b) "sin"(cot^(-1)(cot4)) "tan"(cos^(-1)(cos5)) (d) "cot"(sin^(-1)(sin4))

Evaluate the following: cot^(-1)(cot4)

Evaluate each of the following: cot^(-1)((cot pi)/(3))( ii) cot^(-1)((cot(4 pi))/(3))( iii) cot^(-1)((cot(9 pi))/(4))

The value of cot^(-1)(cot(7pi)/(4)) is:

Evaluate each of the following: cot^(-1)(cotpi/3) (ii) cot^(-1)(cot(4pi)/3) (iii) cot^(-1)(cot(9pi)/4)

Prove that : cot^(-1) 3 + cot^(-1).(3)/(4) = cot^(-1) .(1)/(3)

Prove that : cot^(-1) 3 + cot^(-1).(3)/(4) = cot^(-1) .(1)/(3)

If cot^(-1) ( alpha) = cot^(-1)(2) + cot^(-1)(8) + cot^(-1)(18) + cot ^(-1)(32) + "…………" upto 100 terms , then alpha is :