Question # 1

E-radius corresponding to < C is

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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

The set {-1, 1} is

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Group under the multiplication

Group under addition

Does not form a group

Contains no identity element

The angle of elevation of the tops of two towers at the middle point of the line joining the foots of the tower are 60^οand 30^οrespectively. The the ratio of the heghts of the tower is

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2 : 1

3 : 1

1 : 2

1 : 3

In the expansion of (a + x)ⁿthe general term T_{r + 1}is

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Cos-1 (-x) =

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-x

1/x

tan-1 x

π-cos-1 x

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An ellipse

A parabola

A circle

A hyperbola

There is no element common in

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N and W

E and W

N and O

Q and Q'

The identity element with respect to subtraction is

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0

-1

0 and 1

None of thes

If n is any positive integer then 4ⁿ>3ⁿ+ 4 is true for all

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3, -3, 11

3, 3, 11

-3, 3, -11

-3, -3, 11

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