(b) 7(d) 2he sum of the series:452-432+442-422+432-412+422-402+till 15 – InterviewSolution

1.

(b) 7(d) 2he sum of the series:452-432+442-422+432-412+422-402+till 15 term(a) 1982(b) 2592(c) 2756

Answer»

use a^2-b^2 formula or many other method exist, your answer will be (b) 2592

please let me know I will tell you other tactics. like doing its using AP formula

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