The nth term of an A P is given by (-4n+15) find the sum of first 20 terms of this - Maths - Arithmetic Progressions

Question

The nth term of an A P is given by (-4n+15) find the sum of
first 20 terms of this A P

Abhishek Kr. Jha · Accepted Answer

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The nth term of an A.P is given by (-4n+15).find the sum of first 20 terms of this A.P