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{5.2} Change exponential equation to log form

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lala88's version from 2015-07-15 01:27

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Question Answer
8^3 = 512log (base 8) 512 = 3
0.00001 = 10 ^-5log (base 10) 0.00001 = -5
15= square root of 225log (base 225) 15 = (1/2)
(8/125) = (2/5)^3log (base (1/27) 3 = (-1/3)
e^x =6x=ln6
x=y^zlog (base y) x =2
log (base 2) 1 =0
log (base 5) 3125 =5
log (base 1/4) 4096=-6
log 0undefined
log (-100)undefined
Find the domain of f(x)=log(base 2) (x+5)(-5, infinity)
Find the domain of f(x)=log (base 3) (5-x)(neg. infinity, 5/2)
Find the domain of f(x)=ln (7-2x)(negative infinity, 7/2)
Find the domain of f(x)= |x|(negative infinity, 0) U (0, infinity)
Find the domain of f(x)=log(x^2+1)all real numbers
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