Home / Aptitude Tests / Mathematics / What are K and L res...
What are K and L respectively if \(\frac{1}{2}\)(3y - 4x)

What are K and L respectively if \(\frac{1}{2}\)(3y - 4x)2 = (8x2 + kxy + Ly2)

A.

-12, \(\frac{9}{2}\)

B.

-6, 9

C.

6, 9

D.

12, \(\frac{9}{2}\)

View answer & explanation

Correct answer is A

\(\frac{1}{2}\)(3y - 4x)2 = (8x2 + kxy + Ly2)

\(\frac{1}{2}\)(9y2 - 24xy + 16x2) = 8x2 + kxy + Ly2

\(\frac{9}{2}\)y2 - 12xy) = kxy + Ly2

k = -12 ∴ L = \(\frac{9}{2}\)

See all Mathematics questions & answers
See more JAMB questions & answers
Similar Questions

Find p, q for which \(\begin{pmatrix} 2p & 8 \\ 3 & -5q \end{pmatrix}\)\(\begin{pmatrix} 1 \...

A book seller sells Mathematics and English books. If 30 customers buy Mathematics books, 20 custome...

From the diagram above, which of the following is true? ...

Solve \(\frac{1}{x + 1}\) - \(\frac{1}{x + 3}\) = \(\frac{1}{4}\)...

A number of pencils were shared out among Bisi, Sola and Tunde in the ratio of 2:3:5 respectively. I...

In triangle PQR, q = 8 cm, r = 6 cm and cos P = \(\frac{1}{12}\). Calculate the value of p....

Find the 17term of the Arithmetic Progression (A.P):-6,-1,4 ...

In the diagram, KS is a tangent to the circle centre O at R and ∠ROQ = 80°. Find ∠QRS. ...

Solve for x in the equation x\(^3\) - 5x\(^2\) - x + 5 = 0 ...

If Musa scored 75 in biology instead of 57, his average mark in four subjects would have been 60. Wh...

Aptitude Tests

Personality Test

Microsoft Office Questions and Answers

Spatial Reasoning Questions and Answers

Typing Speed and Accuracy Test

Quantitative Reasoning Questions and Answers

Verbal Reasoning Questions and Answers

Abstract Reasoning Questions and Answers

Nigeria General Knowledge Questions and Answers

Data Interpretation Questions and Answers

Situational Judgement Questions and Answers

Numerical Reasoning Questions and Answers

Logical Reasoning Questions and Answers

Puzzles Questions and Answers

See all →