Question # 1

No. of ways of solving a quadratic equation:

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1

3

2

4

If a_n = (n + 1) a_n-1, a₁ = 1, second term of the sequence is:

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3

1

2

4

In any triangle ABC, law of cosines is:

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A

B

Number of terms in the expansion of (a+b)ⁿ is:

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n

n+1

n-1

none of these

sin (α + ß) =

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If x is positive or zero, then the principal value of any inverse function of x, if it exists lies in the interval:

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π, e are:

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integers

natural numbers

rationalnumbers

irrationalnumbers

[0] is a:

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2 cos α cos ß =

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sin (α + ß) - sin (α - ß)

cos (α + ß) - cos (α - ß)

cos (α + ß) + cos (α - ß)

sin (α + ß) + sin (α - ß)

The circum-radius R of a triangle is given by:

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Factors of x² + y² are:

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(x + iy) (x - iy)

(x + y) (x - y)

(x + y) (x + y)

none

If f(x) = arccos x, then:

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The product of three G.Ms between 1 and 16 is:

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32

64

128

16

sin^-1 (-x) =

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-sin^-1 x

sin^-1x

π + cos^-1x

-cos^-1x

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2x

x²

1

none of these

One of the roots of the equation 3x2 + 2x + k = 0 is the reciprocal of the other, then k = ...............:

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3

2

1

4

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x = 0, y = 0

Which one is exponential equation:

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ax² + bx + c = 0

ax + b = 0

2^x = 16

If sin α < 0 and cos α > 0, then α lies in:

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I

II

III

IV

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