Question

1. Evaluate
5 + (-5) + 5 + (-5) + 5 + (-5) +_
If number of terms are
(a) 101(b) 102 (c) 1000 (d) 1051
2. Simplify
6 - [6 - {6 - 6 - 7 - 8 - 9) - 10 + 11} – 6 - 9] + 8





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Answer 1

Answer:

$5 + ( - 5) + 5 + ( - 5) + 5 + ( - 5) \\ = 5 - (5) - 5 + 5 - 5 \\ = 5 - (5) - 5 \\ = 0 - 5 \\ = - 5$