- #1

mark2142

- 146

- 33

- Homework Statement:
- Suppose ##x^2 > 900##

- Relevant Equations:
- What will be x?

We can also write a general inequality ##x^2>a## where a is a number.

If ##x^2= a##, then ##x= \pm \sqrt a## which means ##x= \sqrt a## or ##-\sqrt a##.

But in this case i don’t think it will be ##x > \pm \sqrt a## because if we take ##0## , it’s greater than a negative but in the original inequality ##0 < a## , a positive number.

If ##x^2= a##, then ##x= \pm \sqrt a## which means ##x= \sqrt a## or ##-\sqrt a##.

But in this case i don’t think it will be ##x > \pm \sqrt a## because if we take ##0## , it’s greater than a negative but in the original inequality ##0 < a## , a positive number.

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