7.4 radical in the denominator - mccc
TRANSCRIPT
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135 day 10 April 01, 2015
Simplifying Radicals7.4 Radical in the denominator
1
rationalizing the
denominator
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Conjugates
difference of square
a+b ab a2 b2
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rationalizing denominators
(NOT square root)
Multiply top and bottom by what you need to make a rational number in the denominator
64=8 * 8= 2*2*2*2*2*2=26
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108=2 108
2 54
3 27
3 9
3
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square root in equation
Square both sides
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to hard to call ...hope this doesnt happen to you!
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complex Numbers
imaginary
complex 6 + 2i
complex conjugate 6 2i
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2 3i
3 7i 3 + 7i
3 + 7i 6 + 14i 9i 21i2
9 49i2
6 + 5i 21 (1)
9 49(1)
27+5i58
27 + 5i
58 58
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i^53 = i^52 * i = i