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If the roots of the equation bx^(2)+cx+a...

If the roots of the equation `bx^(2)+cx+a=0` be imaginary, then for all real values of x, the expression `3b^(2)x^(2)+6bcx +2c^(2)` is

A

Greater than 4ab

B

Greater than 4ab

C

Greater than – 4ab

D

Less than – 4ab

Text Solution

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The correct Answer is:
C
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