Evaluate log_6(12)+(1/3)log_6(27)

Answering this question requires knowledge of the logarithm rules. Mainly how to manipulate logarithms.Firstly, notice that the multiplication in front of log_6(27) can be moved to be the power of the 27. Changing (1/3)log_6(27) to log_6(27^(1/3)). Taking the cubic root of 27 (x^3=27, what is x?) We see that this can then be simplified to (1/3)log_6(27)=log_6(3).The overall expression now becomes log_6(12)+log_6(3).We now use another logarithm rule, that when two logarithms with the same base and nothing multiplying either of them are added together, this is equivalent to log_a(x)+log_a(y)=log_a(xy). Therefore log_6(12)+log_6(3)=log_6(12*3)=log_6(36).Transforming this into exponential form, so we can see what this is equal to, we use the transformation formula:log_a(b)=c b=a^cSo, y=log_6(36) 36=6^yWhat power do we need to raise 6 to to get the answer as 36?2Therefore we have our solution.log_6(12)+(1/3)log_6(27)=2

CD
Answered by Christine D. Maths tutor

1665 Views

See similar Maths Scottish Highers tutors

Related Maths Scottish Highers answers

All answers ▸

Given that, dy/dx = 6x^2 - 3x + 4, and y = 14 when x = 2, express y in terms of x.


Given that dy/dx = 6x*2 - 3x + 4 And y =14 when x=2. Express y in terms of x


Show that (𝑥 − 1) is a factor of 𝑓(𝑥)=2𝑥^3 + 𝑥^2 − 8𝑥+ 5. Hence fully factorise 𝑓(𝑥) fully.


show y=3x-5 is tangent to x^2 + y^2 +2x -4y - 5 = 0 and the point where they touch


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning