Question # 1

The length of the tangent from (2, 1) to the circle x²+ y²+ 4y + 3 = 0 is

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The last term of (1+2x)-2

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(-1)-2 (2x)-2

(-1)-4(-2x)-2

(-1)-3(2x)-3

Does not exist

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The law of sines

The law of consines

The law of tangents

None of these

5 unbiased coins coins are tossed simultaneously. The probability of getting at least one head is

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1 / 32

31 / 32

1 / 16

None of these

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Always negative

Zero

Always positive

Infinity

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One-to-one and onto

One-to-one but not on to

Onto but not one-to-one

Neither one-to-one nor onto

If A is a set then any subset R of A x A is called

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relation on A

relation on B

relation from A to B

relation from B to A

Which conjunction is not true ?

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If all members of a sequence are real numbers then it is called

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A.P

Real Sequence

G.P

None of these

The roots of ax2+bx+c=0 are

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Rational ⇔ b2 -4 ac ≥ 0

Irrational ⇔ b2-4 ac > 0

Real ⇔ b2-4 ac ≠ 0

Rational⇔ b2-4 ac = 0

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