Math, asked by STG007, 10 months 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

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

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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