Prove or disprove that (1)/(1-cot x) is the same as (sin x)/(sin x - cos x)

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)