SOLUTION: log[2](log[3]81)

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Question 408301: log[2](log[3]81)
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
We wish to find log%282%2C+%28log%283%2C+81%29%29%29. Just work from the inside out: since log%283%2C+81%29+=+4, then this is equivalent to finding log%282%2C+4%29 which is equal to 2. Here, I already assumed you were familiar with finding log functions such as log%283%2C+81%29 since 3%5E4+=+81.