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Grade 12th PassIIT JEE Entrance Exam

Find sum of products of ten no.s +1,-1,+2,-2,+3,-3,+4-4,+5,-5 taking two at a time. kindly give proper explanation.

Profile image of Sudeep P
8 Years agoGrade 12th Pass
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1 Answer

Profile image of Pavan sai vardhineedi
8 Years ago
What type of question is this!!!
It is based on pure logic
When a number is subtracted from the same number then the sum becomes zero.
 n-n=0
So it's always zero

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