Sequence And Series Question 312
Question: The G.M. of roots of the equation $ x^{2}-18x+9=0 $ is
[RPET 1997]
Options:
A) 3
B) 4
C) 2
D) 1
Show Answer
Answer:
Correct Answer: A
Solution:
Let $ \alpha $ and $ \beta $ be the roots of equation $ x^{2}-18x+9=0 $
$ \therefore $ G.M. of $ \alpha $ and $ \beta $ $ =\sqrt{\alpha \beta }=\sqrt{9}=3 $ .
BETA
