Question # 1

If the angle between two vectors with magnitude 8 and 2 is 60° then their scalar product is

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12

8

16

1

The nth term of A,P:1,5,9,15...........is given by

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4n - 3

4n + 1

3n -4

4n +3

If i,m,n are the direction cosines of a vector O̅P̅ then

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I² + m² + n² =0

I² - m² + n² =1

I² + m² + n² =1

I² + m² - n² =0

π/3 is

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A positive integer

A negative integer

A natural number

An irrational number

If k₁ : k₂ = 1:1 then the point P dividing the line is

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Mid point

Extreme left point

Extreme Right point

Plies out side k₁ and k₂

Cos^-1 x =

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∏ = sin^-1 x

∏ + sin^-1 x

∏/2 - sin^-1 x

∏/2 +sin^-1 x

√23 is

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A rational number

A irrational number

An even integer

A factor of 36

The value of the polynomial 3x³ + 4x² - 5x + 4 at x = -1 is

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A² + B²

A² + B²+ 2AB

A + B

A² + B² + AB+BA

P(x) = 2x⁴ -3x³ +2x-1 is polynomial of degree

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1

2

3

4

Given eight points in a plane no three of which are collinear how many lines do the points determine?

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16

64

28

36

If A = [a_ij] and b = [b_ij] are the matrices of the order 3x3 then A-B=

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Circle

Ellipse

Parabola

Hexagon

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NAT I Engineering Mathematics MCQs With Answers

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