4(cot^(-1)3+cos ec^(-1)sqrt(5))=pi

4(cot^(-1)3+csc^(-1)sqrt(5))=pi

4(cot ^(-1)3+"cosec"^(-1) sqrt(5))=pi

Prove that 4(cot^(- 1)3+c o s e c^(- 1)sqrt(5))=pi

The value of cot^(-1)9+"cos ec"^(-1)((sqrt(41))/(4)) , is equal to

Prove that : cot^-1 3 + cosec^-1 sqrt5 = pi/4

sec^(2)cot^(-1)((1)/(sqrt(3)))+tan^(2)cos ec^(-1)(sqrt(2))

cos^(-1)(cos(2cot^(-1)(sqrt(2)-1))) is equal to sqrt(2)-1( b) (pi)/(4)(c)(3 pi)/(4) (d) none of these

cos^(-1)("cos"(2cot^(-1)(sqrt(2)-1))) is equal to sqrt(2)-1 (b) pi/4 (c) (3pi)/4 (d) non eoft h e s e

cos^(-1)("cos"(2cot^(-1)(sqrt(2)-1))) is equal to (a) sqrt(2)-1 (b) pi/4 (c) (3pi)/4 (d) none of these

Evaluate each of the following: (cot^(-1)1)/(sqrt(3))-cos ec^(-1)(-2)+sec^(-1)((2)/(sqrt(3))) (ii) cot^(-1){2cos((sin^(-1)(sqrt(3)))/(2))}