Question # 1

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sin x

-cos x

-sin x

cos x

Which of the following is not a vector quantity ?

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Weight

Mass

Force

Velocity

The graph of the parabola y² = -4ax is symmetric about:

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x-axis

major axis

y-axis

minor axis

Perpendicular dropped from the center of a circle on a chord _______ the chord:

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Normal

Bisects

Equal to

None of these

The directrix of the parabola y² = 4ax is:

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x = a

x = -a

y = a

y = - a

y = b is a horizontal line perpendicular to ________:

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x - axis

y - axis may be

y - axis

None of these

Length of tangent from (0,1) to x² + y² + 6x - 3y + 3 = 0

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2

1

4

3

The vertex of the parabola x² = 4ay is:

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(-a, 0)

(0, a)

(0, -a)

(0, 0)

The horizontal line x' ox is called:

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x-axis

y-axis

abscissa

ordinate

The distance between the center of a circle and any point of the circle is called:

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Tangents

Secant

Diameter

Radius

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0

1

-1

2

A linear equation in two variables represents:

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Circle

Ellipse

Hyberbola

Straight line

The graph of the parabola x² = -4ay is symmetric about:

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x-axis

major axis

y-axis

minor axis

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2

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Parametric equations x = a cos t, y = a sin t represent the equation of:

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Line

Circle

Parabola

Ellipse

The line y = c is above the x - axis, if:

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c > 0

c < 0

c = 0

If 2 and 2 are x and y-components of a vector, then its angle with x-axis is:

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30°

45°

60°

90°

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0

1

-1

2

f (x) = x secx, then f(0)=

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-1

0

1

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