Which is greater
-2 4/5
-2 2/5
-2 4/25
-2 7/10

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

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).

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?