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Find the 30th term of the AP 10,7,4........In this question, can you expline how we get the common difference.? |
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Answer» Answer: -77 (COMMON difference means the difference between 2 consecutive terms or constant) Step-by-step explanation: LET a be the first term n be the no. of terms d be the difference The formula for A.P. = a + (n - 1)d a = 10 n = 30 d = -3(as it is descending) a + (n - 1)d 10 + (30 - 1)*(-3) 10 + (-87) 10 - 87 -77 Conclusion∴ the 30th term is -77 Hope you UNDERSTOOD :) |
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