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QusWhich among the following will yield -1 for negative number and 1 for positive number for a number stored in a variable a? QusWhich among the following will yield -1 for negative number and 1 for positive number for a number stored in a variable a?

A. Math.abs(a)*a
B. Math.abs(a) / a
C. Math.ceil(a) / Math.floor(a)
D. None of these

Solution

B. Math.abs(a) / a