Calculus. Help?
@freckles @magepker728 @katherinkoon @dan815
For number 3 i got C
For 2 I got A
right
Not sure on the rest.
B for 4
So 1. ? 2. A 3. C 4. B 5. ? These are right and can you help with the other 2?
For question 1 just go through each statement one at a time and see if it's false.
#1 I think it is either c or d.
Are my other ones right?
I don't really want to check through five questions right now :P
You only check one of them dan checked the other 2 :)
question #1 please think about this function \(y=\ln x\) and its inverse
I'm confused...
Use that function and go through each option for #1, checking if it's true or false. Drawing a quick sketch of y=lnx might help.
|dw:1455047477394:dw|
otherwise, think about the trigonometric function \(y= \sin x\), and its inverse both functions increase or decrease
well the inverse is arcsin(x) and the graph is like this |dw:1455047774990:dw|
So it is D!?
yes! Here are the corresponding graphs:
alright and #5?
#5 is pretty straightforward. Use the formula for compound interest and plug numbers in.
I'm sorry, I'm not good with financial mathematics
What is the formula?
You must have seen it before. In your book or notes or something. Or google it.
Ok I found it but it just gives us n for the number of times it is compounded
The question gives you everything you need. The initial amount, the interest rate, and n.
And the time.
can you set it up and ill calculate it? the formula is A=P(1+r/n)^nt
I'm sure you can set it up, if you're in calculus... http://www.mathwarehouse.com/compound-interest/images/formula-compound-interest.png
For n = infinity you have to use the formula for continuous compounding, A=Pe^(rt)
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