Homework Statement
27. limit as x head towards infinity of xsin(1/x) is
A 0
B infinity
C nonexistent
D -1
E 1
from barron's ap calc 7ed, Chapter two review questions p.37
how come the answer is E? Isn't it A b/c the limit equals infinity or neg infinity times zero? the Book explains...
Refresh on energy principle
Why is the potential neg near a planet? It is because the work taken to push an object out into space is positive?
BTW, JPC, are you asking the question for homework or for your curiosity?
Homework Statement
If the domain of f is restricted to the open interval (-pi/2,pi/2), then the range of f(x) = e^(tanx) is
A) the set of all reals
b the set of positive reals
c the set of nonnegative reals
d R: (0,1]
e none of these
(from barron's How to prep for ap calc)
Homework...
Are my attempts to the solutions valid? Man exerts force on Monkey and vice versa. Do indirect forces count in Newton's third law? Like the one between the tree and man.
Homework Statement
"Identify at least five pairs of action reaction forces in the following diagram"
Source: http://www.physicsclassroom.com/Class/newtlaws/U2L4b.html problem 2
Homework Equations
Newton's third law
The Attempt at a Solution
1) Man and monkey
2)monkey and scale...