Find (i) `tan ^(-1) (-1)`

Find (I ) tan ^(-1) ( - sqrt(3)) (ii ) tan^(-1) ( tan (( 3pi )/(4)) (iii ) tan ( tan^(-1 ) (2019))

Find x if tan^(-1)x=tan^(-1)((1)/(3))+tan^(-1)((1)/(4))

Find tan tan ^(-1) (2020)

Find x if tan^(-1)(x) = tan^(-1)(1/2) + tan^(-1)(3/7)

Find the principal values of the following (i) tan^(-1) (tan. (2pi)/(3)) (ii) tan^(-1) (tan (-6))

Find the principal values of the following (i) tan^(-1) (tan. (2pi)/(3)) (ii) tan^(-1) (tan (-6))

Evaluate the following: (i) tan{2\ tan^(-1)(1/5)-pi/4} (ii) tan(1/2\ sin^(-1)(3/4)

Evaluate the following: (i) tan{2\ tan^(-1)(1/5)-pi/4} (ii) tan(1/2\ sin^(-1)(3/4)

Find the principal value of the following: (i) tan^(-1) (-sqrt3) (i) cos^(-1) (-(1)/(sqrt2))

If I_n = int tan^n x dx , then prove that I_n = (tan^(n-1) x)/(n - 1) - I_(n - 2) . Hence find int tan^7 x dx