Simplify `tan(-23 (pi)/3)`

Simplify tan ((pi)/(4) +A) tan ((pi)/(4)-A)

Simplify: i^(23)

(i)Simplify tan(pi/4+theta)

Simplify tan^(-1) [(3 sin 2 alpha)/(5 + 3 cos 2 alpha)] + tan^(-1) [(tan alpha)/(4)], " where " -(pi)/(2) lt alpha lt (pi)/(2)

Simplify : tan ^(−1)(1/2)+tan ^(−1) (1/3).

Simplify: tan(pi/4 + theta) tan ((3pi)/4 + theta)

Simplify tan^(-1) (tan. (5pi)/6)

Simplify tan^-1 (cosx/(1-sinx)) , for (-3pi)/2 < x< pi/2' .

(i) Find tan(- (2pi)/(3)), cos 315^(@), sec210^(@), cosec225^(@), Tan(- (23pi)/(3)), cot(-300^(@)) and sin. (-(17pi)/(4)) .