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Let px^4+qx^3+rx^2+sx+t=|{:(x^2+3x,x-1,x...

Let `px^4+qx^3+rx^2+sx+t=|{:(x^2+3x,x-1,x+3),(x+1,-2,x-4),(x-3,x+4,3x):}|` be an identity where p,q,r,s and t are constants, then the value of s is equal to

A

0

B

1

C

2

D

`-1`

Text Solution

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The correct Answer is:
A
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