## Quadratic Equation Quiz-13

As per analysis for previous years, it has been observed that students preparing for JEE MAINS find Mathematics out of all the sections to be complex to handle and the majority of them are not able to comprehend the reason behind it. This problem arises especially because these aspirants appearing for the examination are more inclined to have a keen interest in Mathematics due to their ENGINEERING background.

Furthermore, sections such as Mathematics are dominantly based on theories, laws, numerical in comparison to a section of Engineering which is more of fact-based, Physics, and includes substantial explanations. By using the table given below, you easily and directly access to the topics and respective links of MCQs. Moreover, to make learning smooth and efficient, all the questions come with their supportive solutions to make utilization of time even more productive. Students will be covered for all their studies as the topics are available from basics to even the most advanced.

Q1.
•  4/5
•  0
•  2/5
•  -(4/5)
Solution
Q2. If the roots of the equation ax2-4x+a2=0 are imaginary and the sum of the roots is equal to their product, then a=
• -2
•  4
•  2
•  None of these
Solution
Q3.
•   Ï€-arg(z)
•  2Ï€-arg(z)
•  Ï€+arg(z)
•  2Ï€+arg(z)
Solution
Q4. If ecosx-e-cosx=4 then the value of cosx is
•  log(2+√5)
•  -log(2+√5)
•  log(-2+√5)
•  None of these
Solution
Q5.
•  5
•  2√5
•  5/2
•  None of these
Solution
Q6. If z1,z2 and z3,z4 are two pairs of conjugate complex numbers, then arg(z1/z4)+arg(z2/z3) equals
•  0
•  Ï€/2
•  3Ï€/2
•  Ï€
Solution
Q7. If cosÎ±+cosÎ²+cosÎ³=sinÎ±+sinÎ²+sinÎ³=0, then cos3Î±+cos3Î²+cos3Î³ equals
•  0
•  cos(Î±+Î²+Î³)
•  3cos(Î±+Î²+Î³)
•  3sin(Î±+Î²+Î³)
Solution
Q8.
•  At least one real solution
•  Exactly three real solution
•  Exactly one irrational solution
•  All of the above
Solution
Q9.
•  7
• -6
•  5
•  4
Solution
Q10. In the equation a4x4+a3x3+a2x2+a1x+a0=0 roots of the equation are Î±i, i=1,2,3,4. Now, x is replaced by x-1, now roots of new equation are
•  1/(Î±i+1), i=1,2,3,4
•  Î±i+1, i=1,2,3,4
•  Î±i-1, i=1,2,3,4
• None of these
Solution
(b)
Now x-1=Î±i, ⇒ x=Î±i + 1 for new equation, i =1,2,3,4

## Want to know more

Please fill in the details below:

## Latest NEET Articles\$type=three\$c=3\$author=hide\$comment=hide\$rm=hide\$date=hide\$snippet=hide

Name

ltr
item
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET, IIT JEE COACHING INSTITUTE: Quadratic_Equation_Quiz-13