Question

4)<br />Find the sum of the first three terms of the A.P. 3,5,7,9,<br />a. 8 <br />b. 14<br />d. 24<br />C. 15​

Answer 1

Answer:

Let the first three terms of AP is a - d, a, a + d .According to problem, a - d + a + a + d = 33 → (1) (a - d)(a + d) = a + 29→ (2) From (1) ,