11. Enter an angle that is supplementary with /_AXD in the figure below: Use the angle symbol /_ in your answer.

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).

Rationalize the denominator- 12x/√x-10

Find the distance between c and d on the number line c=3 and d=11