If the quadratic equation \( a x^{2}+b x+c=0(a0) \) has \( \sec ^{2} \) and \( \operatorname{cos... VIDEO
If the quadratic equation \( a x^{2}+b x+c=0(a0) \) has \( \sec ^{2} \) and \( \operatorname{cosec}^{2} \theta \) as its roots, then which of the following must hold good?
(a) \( b+c=0 \)
(b) \( b^{2}-4 a c \geq 0 \)
(c) \( c \geq 4 a \)
(d) \( 4 a+b \geq 0 \)
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