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• Users: misskitty
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Multiply 1/(square root of 3) by the (square root of 3)/(square root of 3). Leaving you with the square root of 3 in the numerator and 3 in the denominator. Then multiply that by 2/1 (same thing as 2) to give you 2(square root of 3)/3. How did you think I rationalized?

I think that matches this crazy book. ~Kitty

Oh sorry. :frown: If you rationalize that it turns out to be 2(square root of 3)/ 3... ~Kitty
4. Integrating trig

My process was about the same as VietDao. I'm sorry. ~Kitty
5. Integrating trig

Please don't take this as attacking. Have you been exposed to u substitution? I'm assuming you have. ~Kitty
6. Integrating trig

Let me see if I have this correct, you have: sine of x cubed times cosine of x right? ~Kitty

8. Mean Value Theorem for Integrals

Can someone please explain to me how to use this and give an example that we can walk through please? My book doesn't give an example of what it is talking about. ~Kitty

I get how to do it and that is the process that I used exactly. I just need to know if my answer is correct. That example does tell me I'm going through the correct process though. I was walking blind through the book. :smile: ~Kitty

2( square root of 3)/ 3 I believe they are equivalent answers. I think they might have mislabled the answers again. This book is notorious for doing that. ~Kitty

Let me check. ~Kitty

That exactly what I did to solve the problem. What did you come up with for an answer? My answer is 1.158 but the book says its wrong. ~Kitty

The problem is evaluating the definite integral. BTW- I think my calculator might round automatically causing the .02 difference. ~Kitty

When I do 1/(sin 2.5) I get 1.69 for answer. How do you know when an answer is within limits? Like my answer is .02 different than yours. Does that mean its wrong? ~Kitty

I was in radians yes. ~Kitty

This might look kinda messy but this is one of the problems I've been working on sec^2xdx in the intervale of -pi/6 < x < pi/6. Does that make sense? ~Kitty

No I don't think you are. The only other thing I can't figure out is why I keep getting the incorrect answer because I'm following the process of the Fundamental theorem of calculus the way my book tells me too down to the letter. Is there some reason why this keeps happening? ~Kitty

Why did he tell me I was doing this wrong? I explained my process exactly as I just did to you. ~Kitty