18. Determine the value of k for which the quadratic
equation 4x - 3kx + 1 = 0 has equal roots :
Answers
Answered by
1
Answer:
When there are equal roots.
D=0
b²-4ac ------- 1
a=4
b=3k
c=1
putting these values in 1.
D=b²-4ac
0=(3k)²-4•4•1
0=9k²-16
16=9k²
9k²=16
k²=16/9
k=+-4/3
Answered by
1
Answer:
when there are equal roots
D=o
b^-4ac_1
a=4
b=3k
c=1
putting these values in 1
D=b^-4ac
o=(3k)^-4.4.1
o=9k^.16
16=9k^
9k^=16
k^=16/9
k=+-4/3
Similar questions