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What is the "exact length of "c" in UNSIMPLIFIED RADICAL FORM look like?

label Algebra
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Talking about triangle in Rationals, Irrationals, and Radicals:  a squared + b squared = c squared.  If a = 3, and b = 3, find EXACT LENGTH OF c IN UNSIMPLIFIED RADICAL FORM.   Would it be: 18 = c squared?

Mar 20th, 2015

yes, c^2 = 18, but the problem asks for c, not c squared, so 

c = sqrt(18) = 3sqrt(2) 

Mar 19th, 2015

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Mar 20th, 2015
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Mar 20th, 2015
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