Can some one check my answer,Please!

Question

anonymous · Answer

$$\frac{2\ln7}{\ln7-\ln5}=?$$my caculator is: 11.568
but mathway answer is :3.89182
which one is correct?

anonymous · Answer

$$\frac{2ln7}{ln7 - ln 5} = \frac{ln(49)}{ln(7/5)}$$

anonymous · Answer

I agree with your calculator as it's written.

phi · Answer

Also, 2 ln 7 = 3.89182

anonymous · Answer

so does ln(49)

phi · Answer

My point is the numerator is what is given by pathway... sounds like a mistake

anonymous · Answer

You can also write it as:
$$\large \frac{2}{1-\frac{ln5}{ln7}}$$

anonymous · Answer

which is probably easier to compute on your calculator

anonymous · Answer

I don't get how you get the last equation?

anonymous · Answer

I have caculator fx-115Ms and TI-84

anonymous · Answer

I just factored out an ln7 from the top and bottom and cancelled it.

anonymous · Answer

I see

anonymous · Answer

but the answer keep 11.568
I can get answer 3.89182

anonymous · Answer

anonymous · Answer

Mathway is wrong.

anonymous · Answer

Your answer is correct.

anonymous · Answer

ok, ty

phi · Answer

anonymous · Answer

great, good help ty phi