(iv)sqrt(cosec^(2)A-1)=......

If A+B=90^(@) then prove that tanA+tanB=(cosec^(2)A)/(sqrt(cosec^(2)A-1)) .

Find the value of (sqrt(cosec^(2)A-1))/(cot A+tanA) ?

(sqrt((cosec^(2)theta-1)))/(cosec theta)=cos theta

If the sum of n terms of the series S_n=cosec^-1sqrt10+cosec^-1sqrt50+cosec^-1sqrt170+...........+cosec^-1sqrt((n^2+1)(n^2+2n+2). The value of [lim_(x->oo)s_n] is

If A+B = 90^@ , show that tan A + tan B = (cosec^2B)/sqrt(cosec^2B-1)

The principal value of sec^(-1)(sqrt(2)) + cosec^(-1)(2) is

Write the principal value of tan^(-1) (sqrt(3)) +"cosec"^(-1) (-2)

The minimum value of the function f(x)=(sin x)/(sqrt(1-cos^(2)x))+(cos x)/(sqrt(1-sin^(2)x))+(tan x)/(sqrt(sec^(2)x-1))+(cot x)/(sqrt(csc^(2)x-1))

Find the sum cosec^(-1)sqrt(10)+cosec^(-1)sqrt(50)+cosec^(-1)sqrt(170)++cosec^(-1)sqrt((n^2+1)(n^2+2n+2))