Question # 1

cos 315° = ______

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x²+ 2x + c

(x²+ 2x -1)⁴+ c

If p, q, r and in A.P., a is G.M. between p and q and b is G.M. between q and r, then a², q², b²are in

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A.P.

G.P.

H.P.

None of these

The smallest positive root of the equation tan x - x = 0 lies on

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If n(A) = n then n(P(A)) is

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2n

n²

n/2

2ⁿ

Which is a proper rational fraction

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3x²+ 2

3x²+ 2x + 3

x³+ x²

none of these

The nth term of a G.P. is

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a₁rⁿ

a₁rⁿ⁺¹

a₁r^n-1

a₁r^-n

The multiplicative inverse of x such that x = 0 is

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-x

Does not exist

1/x

±1

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0

90°

180°

360°

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0

1

The 7th term of (3⁸ + 6⁴x)^11/4 is

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-19217/3 x⁶

189/2 6⁴x

2227/12 x³

-19712/3 x⁶

The first three terms in the expansion of (1 - x)^-2are

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1 - 2x + 3x²

1 - 2x - 3x²

1 + 2x + 3x²

-2 - 2x +3x²

If for the matrix A,A5 = 1,then A-1=

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A2

A3

A

None of above

A circle is a limiting case of an ellipse whose eccentricity

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Tends to a

Tends to b

Tends to 0

Tends to a + b

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Intersection of two parabolas

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parabola

Two points

Four points

Hyperobla

Range of cosecθis

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W - {y | -1 < y < 1}

R - {y | -1 < y < 1}

O - {y | -1 < y < 1}

R

(1, 1) is the in the solution of the inequality

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3x + 4y > 3

2x + 3y < 2

4x = 3y > 5

2c - 3y > 2

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The equation of line passing through intersection of line x = 0 and y = 0 and the point (2,2) is

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y = x

y = x - 1

y = x + 1

If (2, 3) and (2, 5) are end points of a diameter of a circle, then the centre of the circle is

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(2, 4)

(4, 8)

(0, 2)

(0, -2)

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Closure law of addition

Associative law of addition

Commutative law of multiplication

Associative law of multiplication

Express the perimeter P of square as a function of its area A?

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P = 4√A

P =√A

P = 2A

P =π√A

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15

15 i

-15 i

-15

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x-axis

y-axis

z-axis

None of these

Consider the equation px2 + qx + r = 0 where p,q,r are real The roots are equal in magnitude but opposite in sign when

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q = 0, r = 0,p ≠ 0

p = 0,qr≠ 0

r = 0,pq≠ 0

q = 0, pq≠ 0

The feasible region which can be enclosed within a circle is called

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Bounded region

Convex region

Unbounded region

None

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