Q.
If a,b,c∈R and abc < 0, then the equation bcx2+2(b+c−a)x+a=0 has
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a
both positive roots
b
both negative roots
c
real roots
d
one positive and one negative root
answer is C.
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Detailed Solution
Product of roots isabc<0 [∵abc<0]Hence, roots are real and of opposite sign.
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