Your 4 th option explaination is wrong
RE: Test Your Math Skills and Win SBD # 2
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Test Your Math Skills and Win SBD # 2
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Hi @satyamsoni, What makes it wrong? :D
As far as I know we can cancel the radical sign since the x is raised by 2. so if you are going to simplify the given it will look like this,
x = √x^2
x = (x^2)^1/2
x = x
so it means, what ever the value is your x, it will satisfy the given inequality. :D
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You are correct we can cancel square with square root, but it can be only apply when x is positive integer, in the case with x is negative it cannot be applied.
In short sqrt(x^2) = |x|
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