JEE Main 2019 Mathematics question
If the sum and product of the first three terms in an A.P. are 33 and 1155, respectively, then a value of its 11th term is:
Answer: (A)
Solution
Terms 11 − d, 11, 11 + d: ⇒ d = ±4; or −25.
If the sum and product of the first three terms in an A.P. are 33 and 1155, respectively, then a value of its 11th term is:
Terms 11 − d, 11, 11 + d: ⇒ d = ±4; or −25.