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If f(x)=a x^2+b x+c ,g(x)=-a x^2+b x+c ,...

If `f(x)=a x^2+b x+c ,g(x)=-a x^2+b x+c` ,where ac`!=0,` then prove that `f(x)g(x)=0` has at least two real roots.

A

at least three real roots

B

no real roots

C

at least two real roots

D

two real roots and two imaginary roots

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The correct Answer is:
C
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OBJECTIVE RD SHARMA ENGLISH-QUADRATIC EXPRESSIONS AND EQUATIONS -Exercise
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