Question

1/log a base 2 + 1/log a base 4 + 1/log a base 8 + ....to n terms = n(n+1)/k then k=?

Answer 1

Answer:

So 0, 1, and every negative number presents a potential problem as the base of a power function. And if those numbers can't reliably be the base of a power function, then they also can't reliably be the base of a logarithm. ... The base of the logarithm: Can be only positive numbers not equal to 1.

Change of base formula Logb x = Loga x/Loga b Pick a new base and the formula says it is equal to the log of the number in the new base divided by the log of the old base in the new base. Solution: Change to base 10 and use your calculator.

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