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IN AN A.P., THE FIRST TERM IS 2 AND THE SUM OF THE FIRST FIVE TERMS IS ONE-FOURTH OF THE NEXT FIVE TERMS . SHOW THAT 20TH TERM IS -112 .❤
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Hlo..
Step-by-step explanation:
In an A.P, the first term is 1 and the sum of the first five terms is one-fourth of the next five terms. Then find 20th term ? Let d be the common difference of A.P, then A.P. is 1, 1 + d, 1 + 2d, 1 + 3d, 1 + 4d, .... So, 20th term = 1 + 19*(-3) = -56 .
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Answers and Solutions:-
Let d be the common difference of A.P, then A.P. is 1, 1 + d, 1 + 2d, 1 + 3d, 1 + 4d, .... So, 20th term = 1 + 19*(-3) = -56 . Ans. So, 20th term = 1 + 19*(-3) = -56 .
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