The value of `{(-1/2)^(-1)}^(- 1) is`

The value of cos(1/2cos^(-1)(1/8)) is (a) 3/4 (b) -3/4 (c) 1/(16) (d) 1/4

The value of cos (1/2 cos^(-1) . 1/8) is equal to

P_(1), P_(2), P_(3) are altitudes of a triangle ABC from the vertices A, B, C and Delta is the area of the triangle, The value of P_(1)^(-1) + P_(2)^(-1) + P_(3)^(-1) is equal to-

The value of [{((1)/(2))^(3)}]^(-2)}^(-1) is

Find the value of sec^(-1)(-2)+tan^(-1)(-1/sqrt3)

Write the value of 2 sin^(-1)(1/2)+cos^(-1)(-1/2)

The value of |1/(2+i) - 1/(2 -i)| is

Find the value of 2\ sec^(-1)2+sin^(-1)(1/2) .

Write the value of cos^(-1)(-1/2)+2sin^(-1)(1/2)

Find the value of: cos^(-1)(1/2)+2sin^(-1)(1/2)