Homework Statement
This is the Problem with the answer:
Homework Equations
V=RI
V_{c}(t)=V_{0}e^{-t/(RC)}
The Attempt at a Solution
Actually, this is a topic about laplace transform.
I tried to solve the problem using the formula.
@t<0
I=40/(3+8) = 40/11 A
V @ 3 ohms =...
Homework Statement
Where do you put an object in front of a concave mirror of focal length 10cm to produce an image that is inverted and 2.5 times greater than the object?
Homework Equations
\frac{1}{f}=\frac{1}{P}+\frac{1}{Q}
Where:
Q=Image distance from mirror
P=Object's...
Homework Statement
determine whether the Ʃ n4 / en2 is convergent or divergent?
Homework Equations
The Attempt at a Solution
Using Root test:
lim of n4/n / en as n approaches infinity
But lim of n4/n as n approaches infinity = ∞0
So: Let N = lim of n4/n as n approaches...
Thanks for the reply
So rechecking limit of (4/8)^k as k approaches infinity is 0
Then if it is sine or cosine over a variable, the comparison test for it is (-1)^k?
and if it is sine or cosine squared, the comparison is 1 only?
Homework Statement
Ʃ cos(k*pi)/k from 1 to infinity.
This is a test for convergence.
and when is the proper time to use the alternating series test
like using it on (-1)k(4k/8k) would result to divergence
since lim of (4k/8k) is infinity and not 0 but the function is really
convergent...
Homework Statement
The question is "Use double integration to find the volume of the solid bounded by the cylinder x2+y2=9 and the planes z=1 and x+z=5"
Homework Equations
The Attempt at a Solution
I tried to draw the curves and the solid that i formed is a cylinder with a...