cos^(-1)(cos5^(n))=1

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 each of the following: cos^(-1)(cos5) (ii) cos^(-1)(cos12)

Evaluate each of the following: cos^(-1)(cos5) (ii) cos^(-1)(cos12)

If cos^(-1)(5/13)+cos^(-1)(3/5)=cos^(-1)x then x=

The value of cos^-1(cos5) is

Prove that: sin(n+1)As in(n+2)A+cos(+1)A cos(n+2)A=cos A

sin ^ (- 1) (sin4) -cos ^ (- 1) cos5 =