Question

If x sin(90°-A)cot(90°-A) = cos(90°-A), then x = ?

Answer 1

xsin(90 -A)cot(90-A)=cos(90-A)
x.cosA.tanA=sinA
x=1
Because if you take cosA to right side then it will convert into tanA by dividing with sinA
so ,now tanA on both side will be cancel out .And You get x=1

Answer 2

Step-by-step explanation:

x sin (90-A) cot(90-A) =cos(90-A)

or, x cos A × tan A = sin A

or, x cos A × sinA/cos A = sin A

or, X × sin A = sin A

or, X =sin A/sin A

or, X = 1