cos^(-1){(1)/(sqrt(2))(cos(7 pi)/(5)+sin...

`cos^(-1){(1)/(sqrt(2))(cos(7 pi)/(5)+sin(2 pi)/(5))}` is equal to
(A) `(23 pi)/(20)` (B) `(13 pi)/(20)` (C) `(3 pi)/(20)` (D) `(7 pi)/(20)`

Similar Questions

Explore conceptually related problems

cos^(-1)((cos(7 pi))/(6)) is equal to ( a ) (7 pi)/(6) (B) (5 pi)/(6) (C) (pi)/(3)(D)(pi)/(6)

cos^(-1) (1/sqrt2 (cos ((7pi)/5)-sin((2pi)/5))) is equal to (a pi)/b where a,b in N and a is prime then (b-2a)=

The value of cos^(-1)sqrt((2)/(3))-cos^(-1)((sqrt(6)+1)/(2sqrt(3))) is equal to (A)(pi)/(3)(B)(pi)/(4)(C)(pi)/(2)(D)(pi)/(6)])

If y^c=27^@, then: y= (a) ((20pi)/3)^c (b) ((20pi)/3) (c) ((3pi)/20) (d) pi/20

The value of int_((pi)/(6))^((pi)/(4))(dx)/(sin2x*(tan^(5)x+cot^(5)x)) is (A) (pi)/(40)(B)(pi)/(60)(C)(pi)/(120) (D) (pi)/(20)

tan((pi)/(20))tan(3(pi)/(20))tan(5(pi)/(20))tan(7(pi)/(20))tan(9(pi)/ (20))

The value of sin^(-1)(cos(33pi)/5) is (3pi)/5 (b) pi/(10) (c) pi/(10) (d) (7pi)/5