Question

Hey guys, having trouble grasping logs at the moment...very basic stuff! Just wondering how you'd use a calculator to find * when 10*=40?

Answer 1

*= 4 since, \( 10 \times 4 = 40 \)

Answer 2

sorry its 10 to the power of 4...I couldnt find a symbol to make it clear on the computer!

Answer 3

Alight so, you want to solve for \( x \) in \( 10^x=4 \), isn't ?

Answer 4

exactly!

Answer 5

Okay so, \( 10^x =4 \implies x = \log_{10} 4 \approx 0.602 \)

Here is a cool website that you would use: http://www.wolframalpha.com/input/?i=Log%5B10%2C4%5D

Answer 6

Thats great, thanks so much!! :)

Answer 7

Glad to help :-)

Answer 8

hi every body i waant to know that what is active and passive elements in elctronics circuits?