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Practice nature of roots of quadratic equation test with multiple choice question (MCQs): if 9x² + kx + 16 is a perfect square, then k =, with choices 24, −24, ±24, and 0 for online bachelor degree. Practice quadratic equations questions and answers for problem-solving, merit scholarships assessment test.

Nature of roots of quadratic equation Quiz

MCQ: If 9x² + kx + 16 is a perfect square, then k =

1. 24
2. −24
3. ±24
4. 0

C

Resolution of a rational fraction into partial fraction Quiz

MCQ: Partial fractions of 1/(x+1)(x² - 1) will be of form

1. A/(x-1) + B/(x² + 1)
2. A/(x + 1) +B/(x + 1) +C/(x-1)
3. A/(x+1) +B/(x+1)² +C/(x-1)
4. None of Above

C

Complementary Combination Quiz

MCQ: Value of nCr + nCr+1 is

1. n+1Cr
2. n-1Cr
3. nCr-1
4. n+1Cr+1

D

Complex Numbers Quiz

MCQ: If z1 = 2 + ι, z2 = 2 + ι, then Im ( z1 + z2 )

1. 3
2. 2

A

Triple Angle Identities Quiz

MCQ: 2sin7θcos3θ =

1. tan2θtanθ
2. cot2θcotθ
3. −tan2θtanθ
4. sin10θ+sin4θ

D