Rationalising an expression means getting rid of any surds from the bottom (denominator) of fractions. Usually when you are asked to simplify an expression it means you should also rationalise it.

The theory that gravitons lose energy thru gravitational redshift while traveling against the force of a gravitational field ...

National 5 Simplifying expressions using the laws of indices Test questions Indices show where a number has been multiplied by itself, eg squared or cubed, or to show roots of numbers, eg square root.

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Emily Wilson’s widely discussed English translation of Homer’s Odyssey, which was the subject of a critical review by Spencer A. Klavan in the Claremont Review of Books back in 2018, has now gained ...

Expand Up @@ -239,6 +239,45 @@ The unpin command restores a contact to its normal position in the list. 3. **User applies a name sort**: Contacts are sorted alphabetically, but pinned contacts remain ...

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