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Question

Find the value of (5+5)(55).
  1. \N


Solution

The correct option is A \N
A common tendency to solve this question is to apply the algebraic identity (a2b2)=(a+b)(ab). But by observation, we can see that (55), which is one of the factors, will result in 0, thus making the final value of the whole expression as 0 i.e.
 (5+5)(55)
=(5+5)×(0)
=0

Mathematics

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