Okay, hi! First off, how do you find a horizontal asymptote? I know that for a vertical asymptote, you just find the value that makes the denominator equal zero, right? Well what about the horizontal asymptote?
And I also have a question about the reduction formula with trigonometric equations.... I'm using the formula y = Asinx + Bcosx = √(a²+b²)sin(x + C), and everything comes out okay until I get to problems like these:
y = -3sinx - 5cosX
I got √(34)sin(x+2.1), but my book says that the answer is √(34)sin(x+4.2).
Similarly, for y = -√2 sinx - √7 cosx, I got 3sin (x + 2.1) and the book says 3sin (x + 4.2).
What am I doing wrong?
Thank you so much! I'll pick a best answer as soon as it lets me (I think 4 hours after I post the question)! Okay thanks!
2007-09-05
16:34:45
·
1 answers
·
asked by
Anonymous
in
Mathematics