Question

please solve fast and say process​

Answer 1

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