MCQ Collection
India MCQs
Practice India questions with answers and explanations.
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Correct Answer: C. 61
Explanation:
|v|²=6²+5²=61.
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Correct Answer: A. 14
Explanation:
f′(x)=2x, so f′(7)=14.
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Correct Answer: D. 8.5
Explanation:
(8+9)/2=8.5.
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Correct Answer: D. 12
Explanation:
By Vieta, α+β=12.
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Correct Answer: C. 50
Explanation:
Determinant=10×5=50.
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Correct Answer: B. 53
Explanation:
|v|²=2²+7²=53.
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Correct Answer: B. 6
Explanation:
f′(x)=2x, so f′(3)=6.
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Correct Answer: A. 3.5
Explanation:
(4+3)/2=3.5.
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Correct Answer: D. 6.0
Explanation:
(7+5)/2=6.0.
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Correct Answer: B. 15
Explanation:
By Vieta, α+β=15.
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Correct Answer: D. 81
Explanation:
Determinant=9×9=81.
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Correct Answer: C. 8
Explanation:
By Vieta, α+β=8.
