Question # 1

The points (5, 2, 4)(6, -1, 2) and (8, -7, k) are collinear if k is equal to

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-2

2

3

-1

The roots of (b-c)x2+(c-a) x+a-b=0 are equal if

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2b = a+c

2a = b+c

2c = a+b

a + b + c =0

If u = xi + yj, then|u|

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x² + y²

(x² +y²)²

x²-y²

√(x²+y²)

xy= 2 is:

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a constant function

an identity function

an improper function

implicit function

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none of these

sin 2 α=

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The set of integer is

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Finite group

A group w.r.t addition

A group w.r.t multiplication

Not a group

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cos 3x + c

- cos 3x + c

An equation which holds good for all values of variables is called

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Equation

Conditional equation

Constant

None

A relation in which the equality is true for all values of the unknown is called ______

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An identity

An equation

A polynomial

None of these

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-3

-7

1

0

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