the sum of n terms of an AP is n² - n, then It's first term is?
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The sum of first n terms of an AP is (n² - n) then first term of AP is 0.
Step-by-step explanation:
Given that, sum of first n terms of an AP is n² - n.
So,
On substituting n = 1, we get
Hence, The sum of first n terms of an AP is (n² - n) then first term of AP is 0.
Additional Information
↝ nᵗʰ term of an arithmetic progression is,
↝ Sum of n terms of an arithmetic progression is,
Wʜᴇʀᴇ,
a is the first term of the progression.
n is the no. of terms.
d is the common difference.
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