Question 5

If x = -0.5, then which of the following has the smallest value?

Solution

$$2^p$$ is always positive

$$x^2$$ is always non negative.

$$1/\sqrt{-x}$$ is always positive.

$$\frac{1}{x}$$ is negative when x is negative.

In this case, x is negative => $$\frac{1}{x}$$ is smallest.

Video Solution

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