4
If the roots of x2 - 4x -log, a=0 are real, then
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Answered by
2
Step-by-step explanation:
then their discriminant is greater than or equal to 0
b²-4ac
where
b =-4
a=1
c=-loga
so
16-4×(-loga)×1
16+4loga=0
loga=-4
a=10^-4 or a>10^-4
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Answered by
1
Answer:
the least value of a is 1/81.
Step-by-step explanation:
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