If a student uses (a-b)^2 to calculate the square of a number, then the number is _______(a) 121(b) 112(c) 199(d) 201I had been asked this question in final exam.This interesting question is from Finding the Square of a Number in portion Squares and Square Roots of Mathematics – Class 8

If a student uses (a-b)^2 to calculate the square of a number, then th

1.	If a student uses (a-b)^2 to calculate the square of a number, then the number is _______(a) 121(b) 112(c) 199(d) 201I had been asked this question in final exam.This interesting question is from Finding the Square of a Number in portion Squares and Square Roots of Mathematics – Class 8
Answer» Right OPTION is (c) 199 Explanation: A STUDENT uses this variant of the formula for the numbers which are near 0. Here there is only one number which is close to 0 and hence 199 is the correct ANSWER. The other options also can be solved USING this method but that would be complicated.

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If a student uses (a-b)^2 to calculate the square of a number, then the number is _______(a) 121(b) 112(c) 199(d) 201I had been asked this question in final exam.This interesting question is from Finding the Square of a Number in portion Squares and Square Roots of Mathematics – Class 8

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