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College Math Practice Test 92

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The MCQ Quiz: The roots of the quadratic equation ax² + bx + c = 0 are imaginary and unequal if; "Nature of roots of quadratic equation" App (Play Store & App Store) with answers: B² - 4ac > 0; B² - 4ac = 0; B² - 4ac < 0; for best SAT prep courses online. Practice Quadratic Equations Questions and Answers, Apple Book to download free sample for online college classes.

## Nature of roots of quadratic equation MCQ Quiz with Answers : Test 92

MCQ 456:

The roots of the quadratic equation ax² + bx + c = 0 are imaginary and unequal if

1. b² - 4ac = 0
2. b² - 4ac > 0
3. b² - 4ac < 0
4. None of Above
MCQ 457:

N(n-1)/3.2.1 =

1. (n-2)ι/3ιnι
2. nι/3ι(n-2)ι
3. 3ι(n-2)ι/nι
MCQ 458:

A semi group is always a

1. A group
2. commutative group
3. a non abelian group
4. groupoid
MCQ 459:

If ƒ(x) = tan-1(x²/2), then f-1(π/4) =

1. 0
2. 1
3. √2
4. 2
MCQ 460:

If ƒ(x) = x4 -4x² +4, then ƒ(√(x+1) =

1. x-1
2. (x-1)²
3. x² -1
4. x² +1