Question # 1

The slope of the normal at (5 cos, 0, 5 sin 0) to the circle. x²+y² = 25 is:

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tan𝜽

cos𝜽 /sin𝜽

-cot𝜽

- tan𝜽

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In(x²- x + 1)⁴+ c

Vector additon is:

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Commutative

Associative

Commutative and Associative

None of these

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none of these

For n€ N,2^n>2 > n is to only when

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n<2

n≤ 4

n≥ 4

6 is

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A prime integar

An irrational number

A rational number

An odd integer

Five engineering, four mathematics, two chemistry books are placed on a table at random.The probability that the books of each kind are all together is

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The period of tan x/7 is

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3π

7π

15π

5π

If the exponent in the binomial expansion is 6, then the middle term is

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2nd

3rd

4th

5th

sn (2sin-10.8)

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0.56

0.69

-0.16

0.96

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-1

0

1

None of these

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