Solve (2x+7) - (2x-4)=

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).