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Section 3.4
8 & 10
Question 8
(1/2)^x = 32
ln [(1/2)^x] = ln 32
x ln(1/2) = ln 32
x = ln 32 ÷ ln (1/2)
x = - 5
Question 10
log x - log 10 = 0
log x = log 10
x = 10
You say?
8 & 10
Question 8
(1/2)^x = 32
ln [(1/2)^x] = ln 32
x ln(1/2) = ln 32
x = ln 32 ÷ ln (1/2)
x = - 5
Question 10
log x - log 10 = 0
log x = log 10
x = 10
You say?
