Question

if = 6 and = 3. then findS10
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Answer 1

Answer:

195

Step-by-step explanation:

For an A.P. a = 6, d = 3

Sn = n/2 [2a + (n – 1) d]

∴  S10 = 10/2 [2a + (10 – 1) 1]

∴  S10 = 5 [2 (6) + 9 (3)]

∴  S10 = 5 (12 + 27)

∴  S10 = 5 (39)

∴  S10 = 195

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Answer 2

Answer:

I didn't get your question... it's very perplexing and complicated hahaha...