anonymous 4 years ago What is 8log8 11?

1. saifoo.khan

Do u have a calc?

2. anonymous

yup but i want to know how to solve it without a calc :)

3. anonymous

this is what i got so far (8 log(11))/(3 log(2))

4. Mertsj

$8\log _{8}11=\log _{8}11^{8}=8$

5. anonymous

ok thanks Mertsj!

6. Mertsj

yw

7. anonymous

wait isn't it suppose to be 11?

8. Mertsj

You are correct. Maybe we should go for the change of base formula.

9. anonymous

yeah...no probs, thanks for helping btw!

10. Mertsj

yw

11. Mertsj

so I guess it's $8\times\frac{\log11}{\log8}$

12. anonymous

Right

13. anonymous

Do you know logx 64=3 what is x=?

14. Mertsj

$x ^{3}=64$

15. Mertsj

$x=4$

16. anonymous

ok thanks!

17. Mertsj

yw