The roots $r_1, r_2, r_3, r_4$ of the equations $4x^4-ax^3+bx^2-cx+5=0$ are $+$ve and satisfying $\dfrac{r_1}{2}+\dfrac{r_2}{4}+\dfrac{r_3}{5}+\dfrac{r_4}{8}=1$. The value of c is?
Reveal answer
Fill a bubble to check yourself
Keep practicing — related questions
- A, B and C were partners sharing profits in the ratio 5 : 4 : 1. 'A' retired and new ratio was decided as 3...
- Which three are methods of the Object class? 1. notify(); 2. notifyAll(); 3. isInterrupted(); 4. synchroniz...
- Which two statements are equivalent? 1. 3/2 2. 3<2 3. 3*4 4. 3<<2
- Which of the following bacteria are examples of free-living nitrogen fixers? 1. Rhizobium 2. Beijerinckia 3...
- Which of the following enzymes are examples of hydorlases? 1. Lactate dehydrogenase 2. Alanine deaminase 3....
- Directions: For the word given above the table, match the dictionary definitions on the left (1, 2, 3, 4) w...
- Which three are valid method signatures in an interface? 1. private int getArea(); 2. public float getVol(f...
- switch(x) { default: System.out.println(Hello); } Which two are acceptable types for x? 1. byte 2. long 3. ...