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Try this:
We know log2 32=5. Show that we get the
same result by writing 32= 2⁵ and then using
power rules. verify the answer.
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Answer:
Log(32) to base 2 = 5
Step-by-step explanation:
Since
2^5 = 2×2×2×2×2 = 32
So
2^5 = 32
Taking Log to base 2 on both sides we get
Log(2^5) at base 2 = Log(32) to base 2
using the power rule for logarithms we get
5(Log (2) at base 2) = Log(32) to base 2
Inter changing left and right sides we get
Log(32) to base 2 = 5(Log (2) at base 2) ......(1)
Since Log (x) at base x = 1 for every positive integer so
Log (2) at base 2 = 1
Putting Log (2) at base 2 = 1 in equation (1) we get
Log(32) to base 2 = 5(1) = 5
Thus
Log(32) to base 2 = 5
Hence proved.
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