5.1 – Using Fundam.Identities
Dec 7th, 2010 by corricelli
Hello!
Please use this section to post questions/concerns/reflections on Chapter 5, Section 1.
Happy Blogging,
Mrs. Corricelli
4 Responses to “5.1 – Using Fundam.Identities”
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I’m getting stuck on number 125. I’ve tried to do it multiple different ways and i keep getting really strange answers. What is the best first step to take? I think i can get it from there but I’m having trouble recognizing the best identity to use
Hey Meg,
I did it by changing secx and tanx to the Big 3. So secx = 1/(cosx) and tanx = (sinx)/(cosx). Multiplying (1/(cosx))*((sinx)/(cosx)) gives a denominator of (cosx)^2.
Next, use tools from class – get the common denominator, factor, and then you should be set!
Let me know!
Mrs. Corricelli
Okay I think thats what I tried to do originally, I guess I just need to run with it a bit more. Thank you!
Sorry about posting on chapter 4!
For #113 on the homework you can use the properties of logarithms on page 238.