TS EAMCET · Maths · Quadratic Equation
If \(\alpha, \beta, \gamma, \delta\) are the roots of the equation \(x^4+x^2+1=0\), then \(\frac{\alpha^3+\beta^3+\gamma^3+\delta^3}{\alpha^6+\beta^6+\gamma^6+\delta^6}=\)
- A 0
- B 1
- C -1
- D \(\frac{1}{2}\)
Answer & Solution
Correct Answer
(A) 0
Step-by-step Solution
Detailed explanation
Given \(\alpha, \beta, \gamma, \delta\) are roots of \(x^4+x^2+1=0\) \(\therefore \quad x^2=\frac{-1 \pm \sqrt{1-4}}{2}=\frac{-1 \pm \sqrt{3} i}{2}\) \(\therefore \quad x= \pm \sqrt{\frac{1+\sqrt{3} i}{2}}, x= \pm \sqrt{\frac{-1-\sqrt{3} i}{2}}\) Let…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Maths
- Assertion (A) The lines \(2 x^2+5 x y+2 y^2=0\) and \(x-2 y+1=0\) form a right angled triangle. Reason (R) The equation \(a x^2+2 h x y+b y^2=0\) represents a pair of perpendicular lines if \(a+b=0\) Then choose the correct answerTS EAMCET 2019 Medium
- The range of the function \(f(x)=-\sqrt{-x^2-6 x-5}\) isTS EAMCET 2018 Easy
- For \(n \in Z\), the general solution of the trigonometric equation \(\sin x-\sqrt{3} \cos x\) \(+4 \sin 2 x-4 \sqrt{3} \cos 2 x+\sin 3 x-\sqrt{3} \cos 3 x=0\) is IsTS EAMCET 2019 Medium
- The parabola with directrix \(x+2 y-1=0\) and focus \((1,0)\) isTS EAMCET 2005 Hard
- If the function \(f: R \rightarrow R\) is defined by \(f(x)=\left\{{l}2 x-3, \text { if } x < -2 \ x^2-1, \text { if }-2 \leq x \leq 2 \ 3 x+2, \text { if } x>2\right.\) then \(\mathrm{f}\) isTS EAMCET 2023 Easy
- If and thenTS EAMCET 2021 Easy
More PYQs from TS EAMCET
- If \(z=\log (\tan x+\tan y)\), then \((\sin 2 x) \frac{\partial z}{\partial x}+(\sin 2 y) \frac{\partial z}{\partial y}\) is equal toTS EAMCET 2007 Easy
- If thenTS EAMCET 2020 Medium
- If the escape velocity on earth is \(11.2 \mathrm{~km} / \mathrm{s}\), its value for a planet having double the radius and 8 time the mass of earth isTS EAMCET 2020 Easy
- If the curves \(y^2=12 x-3\) and \(y^2=12-k x\) cut each other orthogonally then the length of the sub tangent at \((1, b)\) on the curve \(y^2=12-k x\) isTS EAMCET 2025 Medium
- At \(25^{\circ} \mathrm{C}\), the molar conductances at infinite dilution for the strong electrolytes \(\mathrm{NaOH}, \mathrm{NaCl}\) and \(\mathrm{BaCl}_2\) are \(248 \times 10^{-4}, 126 \times 10^{-4}\) and \(280 \times 10^{-4} \mathrm{Sm}^2 \mathrm{~mol}^{-1}\) respectively, \(\lambda_m^{\circ} \mathrm{Ba}(\mathrm{OH})_2\) in \(\mathrm{Sm}^2 \mathrm{~mol}^{-1}\) isTS EAMCET 2009 Easy
- An equation of a line whose segment between the coordinate axes is divided by the point \(\left(\frac{1}{2}, \frac{1}{3}\right)\) in the ratio \(2: 3\), isTS EAMCET 2015 Easy