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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During the opening weeks of the Trump administration, the president issued an executive order vowing to restore “truth and sanity to American history.” Trump sought to undo what he contended was the ...

Background— Apoptosis has been described extensively in acute myocardial infarction and chronic heart failure. Because Daxx (death-associated protein) appears to be essential for stress-induced cell ...

There are a couple of ways of defining the $p$-adic numbers for a prine $p$. One way is to consider the rationals $\mathbb{Q}$, and use a different metric (notion of ...

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 ...