Question

In an AP =(an) if common difference is 3 find a37=a15

Answer 1

Answer:

66

Step-by-step explanation:

Given In an AP =(an) if common difference is 3 find a37 - a15

We know that an = a + (n - 1)d

For n = 37

                      a 37 = a + (37 - 1)3  given d = 3

                      a 37 = a + 36(3)

                     a 37 = a + 108

 Now a 15 = a + (15 - 1)3

         a 15 = a + 14(3)

          a 15 = a + 42

Now a 37 - a 15

                     =  a + 108 - (a + 42)

                    = 108 - 42

                    = 66