Homework Help: Calculus

Posted by Anonymous on Thursday, August 30, 2012 at 12:55pm.

(a) By graphing the function
f(x) = (cos 2x − cos x)/x2
and zooming in toward the point where the graph crosses the y-axis, estimate the value of
lim
x → 0
f(x).

(b) Check your answer in part (a) by evaluating
f(x)
for values of x that approach 0. (Round your answers to six decimal places.)

f(0.1) =

f(0.01) =

f(0.001) =

f(0.0001) =
f(−0.1) =
f(−0.01) =
f(−0.001) =
f(−0.0001) =
lim
x→0
f(x) =

No one has answered this question yet.

Answer this Question

Related Questions

Calculus - (a) By graphing the function f(x) = (cos 2x − cos x)/x2 and...
Math Trig - 13. What is the equation of a cosine function with amplitude 3, ...
calculus - Find an equation for the surface consisting of all points P(x, y, z) ...
maths - Choose the option that gives an expression for the indefinite integral &...
Calculus (help Steve plz) - 1) if w = <-8, 15>, find ||w||? 2) ...
TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
Pre Calculus - Use one of the identities cos(t + 2ðk) = cos t or sin(t + 2&...
Pre Calculus - Use one of the identities cos(t + 2ðk) = cos t or sin(t + 2&...
Math - Prove each identity: a) 1-cos^2x=tan^2xcos^2x b) cos^2x + 2sin^2x-1 = sin...
Math - Solving for Trig Equations - Solve the following equation for 0 less than...

For Further Reading

First Name:
School Subject:
Answer: