Expand Expression  TOPIC_SOLVED

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.

Expand Expression

Postby itgl72 on Fri Nov 30, 2012 3:29 pm

I am checking my answer to expand my expression:

log3(3square root x /81)

I get:

1/3log3 x-4

Did I do this correctly?
itgl72
 
Posts: 6
Joined: Fri Aug 24, 2012 3:12 pm

Sponsor

Sponsor
 

Postby stapel_eliz on Sat Dec 01, 2012 12:23 pm

itgl72 wrote:log3(3square root x /81)

Your formatting is ambiguous. Do you mean either of the following?

. . . . .

. . . . .

Thank you. :wink:
User avatar
stapel_eliz
 
Posts: 1717
Joined: Mon Dec 08, 2008 4:22 pm

Re: Expand Expression  TOPIC_SOLVED

Postby strumbore on Fri Jan 11, 2013 12:51 am

Expanding log3[3SQRT(x/81)]

here are 5 BIG HINTS:

1) Product Property of Logarithms
2) A root is an exponent (find out what SQRT means!)
3) Power Property of Logarithms
4) Quotient Property of Logarithms

5) logaa = 1

Now just do it!

...

ok, answer is (1/2)log3x - 2
strumbore
 
Posts: 6
Joined: Fri Jan 11, 2013 12:01 am


Return to Advanced Algebra ("pre-calculus")