find the value of 0-1+2-3+4-5+6-7+8-9+10-11+12+13-14-15+16-17+18-19+20
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Answered by
6
Answer:
(0+2+4+.......+20)-(1+3+5+.......+19)
=[11(0+20)]/2-[10(1+19)]/2
=(11×20)/2-(10×20)/2
=110-100
=10
Answered by
0
Answer:
10
Step-by-step explanation:
I hope you understand
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