A) 30
B) \[-30\]
C) 40
D) \[-40\]
Correct Answer: A
Solution :
\[x=(-1)+(-1)+(-1).....\] (20 terms) \[=-20\] \[y=1+1+1\]............. (10 terms) =10 \[y-x=10-(-20)=10+20=30\]You need to login to perform this action.
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