d. None of these If ABCD is a conve...
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d. None of these If ABCD is a convex quadrilateral such that 4 sec A + 5 = 0, then the quadratic equation whose roots are tan A and cosec Ais a. 12x² - 113 - 15 = 0 b. 12x² + 11 - 15 = 0 c. 12x2 - 29x + 15 = 0 d. None of these

JEE/Engineering Exams
Maths
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( Rightarrow quad sec A=-frac{5}{4} Rightarrow ) An abtuse 3) ( cos A=-frac{4}{2} ) [ begin{aligned}left(sin eta_{b}right) & tan A+operatorname{cosec} A=-frac{3}{4}+frac{5}{3}=frac{11}{12} operatorname{reat} & tan A cdot operatorname{cosec} A=-frac{3}{4} cdot frac{5}{3}=frac{-5}{4} end{aligned} ] 2) ( x^{2}-left(frac{11}{12}right) x-5=0 ) ( Rightarrow quad 12 x^{2}-11 x-15=0 ) (9) And
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