please solve fast and say process
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Step-by-step explanation:
if 3/4 is root of eq. then putting value of x= 3/4 gives 0
now
4x²-kx+3=0
4(3/4)²-k(3/4)+3=0
(4 ×9/16)-3k/4+3=0
9/4-3k/4+3=0
9/4+3=3k/4
21/4= 3k/4
21= 3k
7= k
hence value of k is 7
#666
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