Question # 1

If n is odd then the middle terms in the expansion of (a + x)ⁿare

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When the angle between the ground and the sun is 30^𝜊,flag pole costss a shadow of 40 mg long. the height of the top of the flag is

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25m

23m

12m

29m

The second degree equation of the form Ax2 +By2 +Gx +Fy +C =0 represent hyperbola if

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A = B≠ 0

A≠ B and both are of same sign

A≠ B both are of opposite sign

Either A = 0 or B =0

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If ΔABC is right triangle then the law of Cosines reduces to

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The Pythagoras Theorem

The law of Sines

The law of cosines

The law of tangents

(1+w)(1+w2)(1+w4)(1+w8)....50 factors

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0

-1

1

2

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The point which divides the line segment joining the points (a, b) and (c, d) in the ratio 2 : 3 internally is

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none of these

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The distance of the point (-2,3) from x-axis is

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-2

2

3

1

If sin 6θ+ sin 4θ+ sin 2θ, thenθ=

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The law of tangents is ______

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If a₁and r are the first term and the common ratio respectively then (n + 1)th term of the G.P. is

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0

a₁r^n-1

a₁rⁿ⁺¹

a₁rⁿ

The slope of the tangent at the point (h,h) of the circle x2 +y2 =a2 is

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0

1

-1

h

If y=f(x) is a function then x is called

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dependent variable

independent variable

constant

none of these

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1

3

2-i

-1

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The process of finding the unknown elements in triangle is called the

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solution of the triangle

Mean differnece

Engineering distance

angle of depressin

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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Second derivative of y = x⁹+ 10x²+ 2x - 1 at x = 0 is

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10

20

12

1

tan^-1x > cot^-1x holds for

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x > 1

x < 1

x = 1

All values of x

The solution set of the equation 4 cos²x - 3 + 0 is

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none of these

If the roots of ax²+ bx + c =0 are equal in magnitude but opposite in sign, then

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a = 0

b = 0

c = 0

None of these

If a plane passes through the vertex of a cone then the intersection is

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an ellipse

a hyperbola

a point circle

a parabola

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The number of the diagonals of a 6 sided figure is

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15

21

9

6

The magnitude of vector a 2i-7j is

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√23

√43

3

√53

Every real number is

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A complex number

A rational number

A natural number

A prime number

The maximum value of sinθcosθis

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1

1/2

1/4

1/6

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