Question

sum of 3 terms AP is 15 they are product is 105 find​

Answer 1

Step-by-step explanation:

a= 5

d = 2

so, three terms are 5 , 7 , 9

Answer 2

Answer:

(a-d)+(a)+(a+d) =15

                    3a=15

                       a=5

(a+d)(a)(a-d)=105

      (a²-b²)a=105

        a³-ad²=105                                   [putting value of a]

     (5)³-5d²=105

     125-5d²=105

            5d²=20

              d²=4

              d=2

a-d = 5-2 = 3

             a=5

a+d = 5+2= 7

                         3,5,7 are the numbers.

                           

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