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5(b) 218. Simplify:1(a) 1 - +3 +42 21_11(c) 2 - -1 - +44. 2+1541(d) 4 .2.IN NIN1- 1 - +55 |
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Answer» (a) 1-3+4=-2+4=4 (B) 2+1-4=3-4=1 |
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