Question # 1

The mid point of the line joining the points P(x₁, y₁) and Q(x₂, y₂) is

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One-one but not onto

One-one and onto

Onto but not one-one

Neither one-one nor onto

Sin 90° = ______

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-1

0

1

Undefined

Three numbers are chosen random without replacement from {1, 2, 3, ...., 10}. the probability that minimum of the chosen numbering is 3 or their maximum is 7

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7 / 40

5 / 40

11 / 40

None of these

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If distance between (3,b) and (0,0) is 3 then b = _______

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3

9

0

If a force F = 2i + j +3k acts at point (1,-2,2) of a body then the moment of F about a pint lying on the line of action of the force is

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5

Equal to the moment of the force about origin

0

Cannot be found

The point of contact of the circles x²+ y² - 6x -6y+10 = 0 and x² + y² =2 is

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(-3 ,2)

(1 , 3)

( -2 , -1)

None of these

If x is an image of y under the function f. This can be written as

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y = f(x)

f(x) = 0

x = f(y)

f(y) =0

Which conjunction is not true ?

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3x + 4 < 0 is

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inequality

equation

identity

not inequality

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