Forwarded from ریاضیات مهندسی (NaCm)
Forwarded from ریاضیات مهندسی (NaCm)
Forwarded from ریاضیات مهندسی (NaCm)
1. A periodic function is defined as:
Anonymous Quiz
11%
f(x+P)=2f(x)
70%
f(x+nP)=f(x)
10%
f(x)=-f(x)
9%
f(x)=f(-x)
Forwarded from ریاضیات مهندسی (NaCm)
2. The particular conditions that a function f(x) must fulfill in order that it may be expanded as a Fourier series is:
Anonymous Quiz
15%
Gibbs phenomenon
27%
Fourier-Mellin Theorem
48%
Dirichlet conditions
10%
Convolution theorem
Forwarded from ریاضیات مهندسی (NaCm)
At a point of finite discontinuity, the Fourier series converges to:
Anonymous Quiz
6%
a_m pi
59%
(1/2)* lim [f(x_0+c)+ f(x_0-c)] when c tends to zero
20%
f(x_0)
14%
f(x)=a_0 + a_1 cos(x)
Forwarded from ریاضیات مهندسی (NaCm)
4. The Fourier series is a combination of ….. and …. trigonometric terms
Anonymous Quiz
12%
sine and co secant
67%
sine and cosine
11%
tangent and cotangent
10%
cosine and secant
Forwarded from ریاضیات مهندسی (NaCm)
Forwarded from ریاضیات مهندسی (NaCm)
Forwarded from ریاضیات مهندسی (NaCm)
Forwarded from ریاضیات مهندسی (NaCm)
7. The trigonometric Fourier series of an even function does not have
Anonymous Quiz
21%
cosine terms
29%
harmonic terms
17%
constant terms
33%
Sine terms
Forwarded from ریاضیات مهندسی (NaCm)
8. If f(x)=sinh(x) defined in [-pi,pi] then a_n and a_0 values are
Anonymous Quiz
18%
a_0=0, a_n=1
49%
a_0=0, a_n=0
21%
a_0=1, a_n=1
11%
a_0=0, a_n=2
Forwarded from ریاضیات مهندسی (NaCm)
9. Which of the following functions can not be expressed as a Fourier series
Anonymous Quiz
44%
tan x
37%
x sin x
14%
sin x
5%
cos x
Forwarded from ریاضیات مهندسی (NaCm)
10. The incorrect statement from the following choices is
Anonymous Quiz
18%
sinx is an odd func.
14%
sin 2x is an odd func.
45%
sin x^2 is an ofd func.
23%
sin x^2 is an even func.