Question # 1

Tan(α-β)=

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The sum of the odd coefficients in the expansion of (a + x)⁴is

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14

12

8

4

∫ x cos dx is equal to :

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x cos x + sin x

cos x + x sin x

x cos x + x sin x

x sin x + cos x

The expansion of (1 + 2x)^-2is valed if

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| x | < 1/2

| x | < 1

| x | < 2

| x | < 3

A,G,H are in

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A.P

G.P

H.P

None of these

The second degree equation 2x2 -xy+ 5x -2y +2 =0 represents

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Circle

Hyperbola

Ellipse

Pair of straight lines

If x, y, z are the pth, qth, rth terms of an A.P. and also of G.P., then x^y-z. y^z-x. z^x-yeqals

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xyz

0

1

None of these

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0

1

2

3

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Hermitian matrix

Skew-hermitian matrix

Symmetric matrix

Identity matrix

F(x) = x^xdecreases in the interval

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(0, e)

(0, 1)

(-∞,0)

None

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