If the quadratic equation `a x^2+b x+c=0(a gt0)` has `sec^2thetaa n dcos e c^2theta` as its ro...
22 views · Published 22 September 2017 · 2:43 · Indexed 4 November 2026
Channel: Doubtnut · 2017 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If the quadratic equation `a x^2+b x+c=0(a gt0)` has `sec^2thetaa n dcos e c^2theta` as its roots, then which of the following must hold good? `b+c=0` b. `b^2-4a cgeq0` c. `ccgeq4a` d. `4a+bgeq0`
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