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College Math Practice Test 66

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The MCQ Quiz: The roots of the quadratic equation ax² + bx + c = 0 are rational and equal if; "Nature of roots of quadratic equation" App (Android & iOS) with answers: B² - 4ac > 0; B² - 4ac = 0; B² - 4ac < 0; to learn distance learning courses. Practice Quadratic Equations Questions and Answers, Google eBook to download free sample for best online GRE prep class.

## Nature of roots of quadratic equation MCQ with Answers : Quiz 66

MCQ 326:

The roots of the quadratic equation ax² + bx + c = 0 are rational and equal if

1. b² - 4ac = 0
2. b² - 4ac > 0
3. b² - 4ac < 0
4. None of Above
MCQ 327:

Cos147° =

1. −cos33°
2. cos33°
3. cos16°
4. sin16°
MCQ 328:

PɅ q Is true if both are true .This is known as

1. conjunction
2. negation
3. disjunction
4. None of Above
MCQ 329:

Sin12α =

1. 3cos³4α-4cos4α
2. 4cos³4α-3cos4α
3. 3sinα-4sin³4α
4. 4sin4α-3sin³sin4α
MCQ 330:

The A.M between x-3 and x+5 is

1. x-1
2. x+1
3. 2x-1
4. 2x+2