Question # 1

For any equilateral r :R :η :r1 :r2 :r3 =

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1:2:3:4:5

1:2:3:3:3

1:2:4:4:4

2:1 :2 :2 :2

3/4 is ______

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An odd number

An even number

A natural number

A rational number

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28 / 81

28 / 243

81 / 28

243 / 82

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Associative property of addition

Commutative property of addition

Distributive property

Additive identity

The equation ax²+ 2hxy + by²+2gx + 2fy + c =0 represents an ellipse if

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An event having more than one sample point is called

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Certain event

Compound event

Simple event

None

If 2x +y + λ =0 is normal to parabola y2 =-8x,λ= _____

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12

8

24

-24

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The number of permutations of n objects of which there are n₁like of one kind, n₂like of the second kind and n₃like objects of third kind are

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The polar form of complex number x ≠ I y =

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r cos θ+ r sin θ

r cos θ+ is sin θ

cos θ+ r sin θ

i cos θ+ i sin θ

Range of sin x is ______

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[-1, 1]

R

Negative real numbers

None of these

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