TS ICET 2017 Question Paper with Solutions for online practice

Question : 75 of 200

Marks: +1, -0

For real numbers a, b let a * b = a + b - ab. If b ≠ 1 and a * b = 0, then a =

Solution:

Given :

a*b=a+b–ab

and

a*b=0

⇒a+b–ab=0⇒ab–a=b

⇒a(b-1)=b⇒a=b/{b-1}

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