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Engineering Mathematics
Fourier Analysis Interview
Quiz 1
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Q.1
Find the order of the difference equation Δ3yn – Δ2yn – Δyn = 3.
a) 3
b) 4
c) 2
d) 5
Q.2
Find the order of the difference equation yn+3 -3 yn+1 – yn-2 = 4.
a) 3
b) 4
c) 5
d) 6
Q.3
Find the difference equation of yn = A+ B 5n.
a) yn+2 -16 yn+1 + 15 yn-1 = 0
b) yn+3 -14 yn+1 + 30 yn = 0
c) 2 yn+2 -14 yn+1 + 15 yn = 0
d) 2 yn+2 -16 yn+1 + 30 yn = 0
Q.4
Find the difference equation of y = ax + b.
a) Δ2y = 0
b) Δ2y = 1
c) Δ2y + 3Δy = 2
d) Δ2y + 4Δy = 5
0 h : 0 m : 1 s
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