Square Roots and Cube Roots Practice Question and Answer
4 4 Q:
630334cec3bfb21b4ac22a32 Answer : 4. "3"
4 Q:
6409cbe7539cee0fcaab7ae7 4 Q:
64c767fd9e9013486a84ee8f 4 Q:
6409cc2586fd4161467debc8
Q: √6+√6+√6+… is equal to –
430 0630334cec3bfb21b4ac22a32
630334cec3bfb21b4ac22a32- 12false
- 25false
- 34false
- 43true
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Answer : 4. "3"
Explanation :
Let √6+√6+√6+…. be x.
We know x =√6+x
We know x2 = 6+x
We know x2 - x – 6 = 0
We know (x-3) (x+2) = 0
We know x = 3 Q: If p = 101, then the value of $$3\sqrt{p(p^2-3p+3)}$$ is
412 06409cbe7539cee0fcaab7ae7
6409cbe7539cee0fcaab7ae7- 1100true
- 2101false
- 3102false
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Answer : 1. "100 "
Q: The value $${7+3\sqrt {5}\over3+\sqrt { 5}}-{7-3\sqrt {5}\over3-\sqrt { 5}}$$ lies between
404 064c767fd9e9013486a84ee8f
64c767fd9e9013486a84ee8f- 13 and 3.5false
- 22 and 2.5true
- 31.5 and 2false
- 42.5 and 3false
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Answer : 2. "2 and 2.5 "
Q: If p = 124, $$3\sqrt{p(p^2-3p+3)-1}=?$$
392 06409cc2586fd4161467debc8
6409cc2586fd4161467debc8- 15false
- 27false
- 3123false
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Answer : 4. "125"
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