Math, asked by Anonymous, 1 month ago

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the sum of the first four tems of an ap is 56 and last four terms is 112.if its first term is 11,then find the numbers of terms.

Answers

Answered by 3701daxita

Answer:

The sum of the last four terms is 112. If its first term is 11, then find the number of terms. Let the A.P. be a, a + d, a + 2d, a + 3d, ... a + (n – 2) d, a + (n – 1)d. Thus, the number of terms of the A.P. is 11.

Answered by xxSAdiStiCxx

Step-by-step explanation:

The sum of the last four terms is 112. If its first term is 11, then find the number of terms. Let the A.P. be a, a + d, a + 2d, a + 3d, ... a + (n - 2) d, a + (n − 1)d. Thus, the number of terms of the A.P. is 11.

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