The sum of first 9 terms of an ap is 171 and that for the first 24 terms is 996.find the ap

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)