The index is the power raised to any integer or variable to multiply them a number of times equal to the value of the index. Learn its meaning, rules, formula, how to use it with examples.
Canyouexplainwhy√1.691.69isnotasurd?√1.69isnotasurdbecauseitisnotirrational.1691.69=100169=10013=10=1.3 4of38 Thisusesthefactthat aa=bb ©BoardworksLtd2005 Manipulatingsurds Whenworkingwithsurdsitisimportanttorememberthefollowingtworules:and aa=bb Also:aaa ...
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5.a pointer, needle, or other indicator, as on an instrument 6.(Mathematics)maths a.another name forexponent4 b.a number or variable placed as a superscript to the left of a radical sign indicating by its value the root to be extracted, as in3√8 = 2 ...
Example ©2009 A-level Maths Tutor All Rights Reserved www.a-levelmathstutor.com 12 Surds Rules Surds are mathematical expressions containing square roots. However, it must be emphasized that the square roots are 'irrational' i.e. they do not result in a whole number, a terminating decimal...