Math, asked by STG007, 1 year ago

What is the Sum of 'n' terms from the last term of the A.P. if a(1st term) is not given?

Answers

Answered by Ankitkumar200314

2

Sum of n terms is

Sn = n/2 [t1+tn]

Please mark it as the brainliest!!!!!

nabeelamirza210: It is asking u to find 1st term not the formula

Ankitkumar200314: okay sorry

Answered by nabeelamirza210

1

Answer:

Step-by-step explanation:

Check the question again may be it is wrong

nwadhera13: it is correct i think

nwadhera13: just replace the first term with last term and D with -D, in the sum formula

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