1. What is exp(ja) equal to, where j is the square root of unity?

a) cos ja + jsin a

b) sin a + jcos a

c) cos j + a sin j

d) cos a + jsin a

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2. What is the magnitude of exp(2+3j)?

a) exp(2.3)

b) exp(3)

c) exp(2)

d) exp(3/2)

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3. What is the fundamental frequency of exp(2pi*w*j)?

a) 1pi*w

b) 2pi*w

c) w

d) 2w

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4. Total energy possessed by a signal exp(jwt) is?

a) 2pi/w

b) pi/w

c) pi/2w

d) 2pi/3w

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5. Sinusoidal signals multiplied by decaying exponentials are referred to as

a) Amplified sinusoids

b) Neutralized sinusoids

c) Buffered sinusoids

d) Damped sinusoids

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6. What is the power possessed by a signal exp(jwt)?

a) 1

b) 0.5

c) ^{1}⁄_{w}

d) w

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7. What is the period of exp(2+pi*j/4)t?

a) 4

b) 8

c) 16

d) 20

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8. exp(jwt) is periodic

a) for any w

b) for any t

c) for no w

d) for no t

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9. Define the fundamental period of the following signal x[n] = exp(2pi*j*n/3) + exp(3*pi*j*n/4)?

a) 8

b) 12

c) 18

d) 24

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10. exp[jwn] is periodic

a) for any w

b) for any t

c) for w=2pi*M/n

d) for t = 1/w

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