If `(3pi)/4ltalphaltpi," then "sqrt(2cotalpha+1/sin^2alpha)`is equal to

If (3pi)/4 lt alpha lt pi , then sqrt(2cotalpha+1/(sin^2alpha)) is equal to (a) 1-cotalpha (b) 1+cotalpha (c) -1+cotalpha (d) -1-cotalpha

If (3pi)/(4)ltalphaltpi , then sqrt(2cotalpha+(1)/(sin^(2)alpha)) is equal to

If (3pi)/(4)lt alphaltpi , then sqrt(2cotalpha+(1)/(sin^(2)alpha)) is equal to

If 0 lt alpha lt pi/2 , then sqrt(2cotalpha+1/(sin^2alpha)) is equal to

If (3 pi)/(4)

If 3π/4<α<π, then sqrt(2cotalpha+1/(sin^2alpha)) is equal to

If (3pi)/4 < alpha < pi , then sqrt(cosec ^2alpha+2cotalpha) is equal to

If 3π/4<α<π, then sqrt(2cotalpha+1/(sin^2alpha)) is equal to (a) 1+cotalpha (b) -1-cotalpha (c) 1-cotalpha (d) -1+cotalpha

If (3pi)/4 < alpha < pi , then sqrt(cosec^2 alpha+2 cot alpha) is equal to

If (3pi)/4,sqrt(2cotalpha+1/(sin^2alpha)) is equal to 1+cotalpha (b) -1-cotalpha 1-cotalpha (d) -1+cotalpha