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The Laplace Transform Of t2cos(4t)t ^ { 2 } \cos ( 4 t )

Question 20

Multiple Choice

The Laplace transform of t2cos(4t) t ^ { 2 } \cos ( 4 t ) is


A) (2/s3) s/(s2+16) \left( 2 / s ^ { 3 } \right) s / \left( s ^ { 2 } + 16 \right)
B) (2/s2) s/(s2+16) \left( 2 / s ^ { 2 } \right) s / \left( s ^ { 2 } + 16 \right)
C) 8/(s3) (s2+16) 8 / \left( s ^ { 3 } \right) \left( s ^ { 2 } + 16 \right)
D) (2s332s) /(s2+16) 3\left( 2 s ^ { 3 } - 32 s \right) / \left( s ^ { 2 } + 16 \right) ^ { 3 }
E) (2s396s) /(s2+16) 3\left( 2 s ^ { 3 } - 96 s \right) / \left( s ^ { 2 } + 16 \right) ^ { 3 }

Correct Answer:

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