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Rashid [163]
3 years ago
13

The second term of a AP is 18 and the fifth term is 486. Find the a; first term b; common ratio.​

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
8 0

Hello,

AP =  arithmetic progression

Step-by-step explanation:

b + a = 18

18 + 3a = 486 ⇔ 3a = 468 ⇔ a = 156

b = 18 - a = 18 - 156 = -138

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=================================

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