bronzegoddess
find inverse: f(x)= (1/2)^x



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bronzegoddess
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@hartnn @UnkleRhaukus
this is what i have:
x=2^y but i don't know how i'll solve for y.

hartnn
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take log on both sides

bronzegoddess
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ok, i'll work out on paper and give answer

bronzegoddess
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i got y= logx/0,301

hartnn
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it can be simplified as
y= \(\log_2x\)
know how ?

bronzegoddess
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yes wait: logx= ylog2
logx/log2= y
y= −log2x because of the formula/rule logax= logx/loga and i know the proof thx!

hartnn
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right,
welcome ^_^