If 3u + 2v = 7 and uv = 2, then the valu

CUET Preparation Today

Start Free Mocks

Home Questions 8MAG4MCRNR

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Algebra

Question:

If 3u + 2v = 7 and uv = 2, then the value of (3u -2v) is :

Options:

Correct Answer:

Explanation:

We know that,

If x + y = n

then, x - y = \(\sqrt {n^2 - 4xy}\)

If 3u + 2v = 7

uv = 2,

then the value of (3u -2v) = \(\sqrt {7^2 - 4(2)(6)}\) = 1