Question # 1

The extraction of cube root of a given number is a

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Unary Operation

Binary Operation

Relation

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cos 2α=

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sin²α+ cos²α

-cosθ

tanθ

None of these

If A is such that a,A,B are in A.P then A is called

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A.M

Common ratio

Common difference

None of these

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1 + 2 + 3 + ...... + n = ______

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Cos (α+β) - cos (α-β) =

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-2 sinα sinβ

2 sinαcosβ

-2 sinαcosα

4 sinα cosβ

An unbiased die is thrown. Then the probability of getting a prime is

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1/2

2/3

3/4

None of these

The seventh term of an A.P whose first term is P and common difference is q. is

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P-6q

P+6q

P-4q

P-nq

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1

-1

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