Question # 1

If (x₁, y₁) and (x₂,y₂) are the end points of a diameter then the centre of the circle is

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f(x) = sin x + cos²x is

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trigonometric function

algebraic function

exponential function

logarithmic function

For each natural number n, n (n+1) is

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an even

an odd

multiple of 3

Irrational

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x^-2+ c

not possible

A number A is said to be the A.M between the two numbers a and b if a, A, b are in

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A.M

A.P

G.P

G.M

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0

1

-1

none of these

If the graph of f is entirely below the x-axis, then the value of definite integral is

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= 0

< 0

> 0

None

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The equation of the circle with centre (h, k) and radius r is

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(x+ h)²+ (y+ k)²= r²

(x+ h)²+ (y - k)²= r²

(x - h)²+ (y+ k)²= r²

(x - h)²+ (y - k)²= r²

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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

The set of all positive even integers is

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Φ

{1,2,3}

{Φ}

{0}

If Cosθ =0, Then θ=

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nπ/2

(2n + 1)π/2

(2n - 1)π/2

(n ±1)π/2

If x² +y² = 4, Then dy/dx =

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2x +2y

4 -x²

-x/y

y/x

If ab > 0 and a < 0, which of the following is negative?

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b

-b

-a

(a - b)²

The two consecutive positive integers whose product is 56 are

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7, 8

14, 4

28, 2

56, 1

The equation of the line with gradient 1 passing through the point (h,k) is

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Y = x+ k-h

Y = k/hx +1

Y = x + h -l

Ky = hx =1

An m x n matrix is said to be rectangular if

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Forms a group w.r.t. addition

Non commutative group w.r.t. multiplication

Forms a group w.r.t. multiplication

Doesn't form a group

What is the domain of y= Sin^-1 x?

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-1 ≤ x ≤1

1 ≤ x ≤ 1

0 ≤ x ≤ π

-π/2 ≤ x ≤ π/2

A die is thrown what is the probability that there is a prime number on the top?

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1/2

1/3

1/6

2/3

1+2+3+......+n=?

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n(n +1)/2

n +1/2

n(n +1)(2n +1)/6

n³

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