Question # 1

The additive inverse of 2/3 is

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3/2

-2/3

-3/2

0

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If the lower limit of an integral is a constant and the upper limit is a variable, then the integral is a

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Constant function

Variable value

Function of upper limit

All

If s = 2t³- 3t²+ 15t - 8 is the equation of motion of a particle, then its initial velocity is

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8

15

-6

None

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a = -1/2, b = -1

a = 1, b = 2

a = 2, b = 3

None of above

If a cone is cut by a plane perpendicular to the axis of the cone, then the section is a

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Parabola

Circle

Hyperbola

Ellipse

If ax + bx + c =0 is satisfied by every value of x,then

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b = 0,c = 0

c = 0

b = 0

a = b = c = 0

The coefficient of x¹⁸ in (ax⁴-bx)⁹ after expansion is

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84a³ b⁶

22a³b⁶

27a⁴b⁵

28a³b⁶

2π is the period of

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sin𝜽

tan𝜽

cot𝜽

all circular function

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An ellipse

A parabola

A circle

A hyperbola

If f(x) = x²then f(0) is

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0

1

2

none of these

Let P(x₁, y₁) and Q(x₂, y₂) be two points in the co-ordinate plane. Let d = distance between P and Q

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-1

0

1

undefined

Additive inverse of - a - b is

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a

-a + b

a - b

a + b

In R, the additive identity is

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0

1

-1

None

Which of the following is a scalar.

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electric field

magnetic field

weight

mass

cos(3π/2 +θ) = _____;

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sinθ

cosθ

-sinθ

-cosθ

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Evert element of A is in B

Every element of B is in A

Every element of A is in B'

Every element of A is in A

Which of the following is a quadrantal angle

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30°

45°

60°

90°

In a school there are 150 students Out of these 80 students enrolled for mathematics class.50 enrolled for English class and 60 enrolled for Physics class The student enrolled for English cannot attend any other class but the students of mathematics and Physics can take two courses at a time find the number of students who have taken both physics and mathematics.