ICSE Class 10 Answered
True or false with reason
if (x-a)(x-b)
Asked by Nilesh Raikar | 26 Jul, 2012, 06:56: AM
Expert Answer
1) (x-a)(x-b)<0
(x-a)<0 or (x-b)<0
So, x<a OR x<b
Thus, the given statement is false.
2) if a<0 & b<0 then (a+b)2>0
As the square of any number is always positive.
Thus, the given statement is true.
3) a and b are any integer such that a>b
Squaring both sides,
a2>b2
Thus, the given statement is true.
Answered by | 26 Jul, 2012, 09:41: AM
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