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Mark the corr...

Question

Mark the correct alternatives in each of the following:

(−1) + (−1) + (−1) + (−1) + ... 500 times =

(a) 500 (b) 1 (c) −1 (d) −500

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Solution

(−1) + (−1) + (−1) + (−1) + ... 500 times

= −(1 + 1 + 1 + 1 + ... 500 times)

= −500

Hence, the correct answer is option (d).

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