MCQ Collection
India MCQs
Practice India questions with answers and explanations.
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Correct Answer: D. 15
Explanation:
By Vieta, α+β=15.
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Correct Answer: C. 24
Explanation:
Determinant=6×4=24.
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Correct Answer: C. 85
Explanation:
|v|²=7²+6²=85.
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Correct Answer: B. 16
Explanation:
f′(x)=2x, so f′(8)=16.
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Correct Answer: A. 9.5
Explanation:
(9+10)/2=9.5.
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Correct Answer: B. 14
Explanation:
By Vieta, α+β=14.
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Correct Answer: D. 12
Explanation:
Determinant=2×6=12.
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Correct Answer: D. 73
Explanation:
|v|²=3²+8²=73.
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Correct Answer: C. 8
Explanation:
f′(x)=2x, so f′(4)=8.
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Correct Answer: C. 4.5
Explanation:
(5+4)/2=4.5.
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Correct Answer: B. 17
Explanation:
By Vieta, α+β=17.
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Correct Answer: A. 61
Explanation:
|v|²=5²+6²=61.
