trey5498 wrote:Sorry I meant (1+x/n) = e^x is the same as your work?
I'm sorry, but I don't understand this run-on of incomplete sentences.
trey5498 wrote:if so what about the (1+1/n) = e?
I'm sorry, but I don't understand what you are saying. Yes, the two different expressions stand for the two different values. How do you feel this to be incorrect?
trey5498 wrote:Checking my math on the rectangle problem:
This should read "V'(x) = 12x^2 - 160x + 400".
Leave this answer in exact form, rather than introducing round-off errors. Your instructor may also require that you check the other solution, confirming it to be invalid within context.
trey5498 wrote:I also have another question as well: Find an equation of the tangent line of f(x) = sin^2(x) at 1/2
Here is what I got so far:
What is this? How does it relate to f(x) = (sin(x))^2?
=2sinxcosx = sin2x = sin2(1/2) = sin(1)
Do not differentiate and evaluate at the same time. Do one, and only then do the other.
trey5498 wrote:y = sin^2(sin)
What is this?
trey5498 wrote:there is where I get stuck. I know I have to solve to find y1 and then plug it in y-y1 = sin(x+1/2).
What is "y1"? How does it relate to either of "f(x)" or "y"? What is the source of "sin(x + 1/2)"?
My supposition is that you are attempting to do two or three different things at once, and the resulting confusion is causing you to lose track of your progress and/or goal. Tis better to proceed methodically.
Before beginning, however, one must first determine the meaning of "at 1/2". Is this the value of x or of y? If not specified, kindly please consult with your instructor. Thank you.