Question

log33 + log327

log381 = 4

log330 = 10

log381 = 27

log330 = 3.1

Answer 1

use below\[\large \log_a m + \log_a n = \log_a (m\times n)\]

Answer 2

\[\large \log_3 3 + \log_3 27 = ?\]

Answer 3

log330=10

Answer 4

nope, its easy actually.. you just need to memorize 2-3 rules and just them :
\[\large \log_3 3 + \log_3 27 = \log_3 (3\times 27) \]

Answer 5

simplifying you get :
\[\large \log_3 3 + \log_3 27 = \log_3 (3\times 27) = \log_3 (81)\]

Answer 6

it simplifies further but you need to use two other rules :
\[\large \log_a m^n = n\log _a m\]

and
\[\large \log_a a = 1\]

Answer 7

so log381=4

Answer 8

I made a logarithm tutorial not so long ago, I think you should definitely give it a read, it's pretty friendly :)
http://openstudy.com/users/iambatman#/updates/5403fdfde4b0f2ed1e14206a

Answer 9

am i right ? and i will check it out