14. (1^2-2^2 + 3^2 - 4^2 +5^2 - 6^2 + ..... + 9^2 - 10^2) = ?
(a) 45
(6) – 45
(6) – 54
(S.S.
(d) - 55
Answers
Answered by
1
Answer:
274
Step-by-step explanation:
(1^2-2^2 + 3^2 - 4^2 +5^2 - 6^2 + ..... + 9^2 - 10^2) =?
2−4+9−16+25−36+49+64
+81+100
=274
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