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# Quick Ln Question watch

1. Hi,

Simplify:

All I can think of of is:

How can I simplify this further?

Thanks
2. 45 = 9*5...
3. well, ln(81/49) = ln([9/7]^2) = 2ln(9/7) and ln(45/35)=ln(9/7) so
4. (Original post by Necro Defain)
well, ln(81/49) = ln([9/7]^2) = 2ln(9/7) and ln(45/35)=ln(9/7) so
ahh got it. Thanks a lot mate

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