Question # 1

Sin^-1 (-x) =

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Cos^-1 1/x

-Sin^-1 X

1/sin-1x

Sin^-1 1/x

The principal value of sin^-1 [√3/2] is

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π/3

-π/3

2π/3

5π/3

If f (x) = x/x²- 4 then which is not included in the domain of f(x)

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0

-2

1

4

If 1 + Cos x = 0 then x =

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π +2n π

π + nπ

π - nπ

π/2

The direction cosines of y-axis are

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1,0,0

0,1,0

0,0,1

1,1,1

The axis of the parabola y² = 4ax is

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x =0

Y =0

X = y

X = -y

The equation of the line with gradient 1 passing through the point (h,k) is

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Y = x+ k-h

Y = k/hx +1

Y = x + h -l

Ky = hx =1

The magnitude of a vector can never be

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Zero

Negative

Positive

Absolute

Domain of Cosecθ is

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is R but θ= nπ

is R but θ ≠ nπ

is R but θ ≠ 2nπ

is R but θ ≠ nπ/2

In the figure angle A is =

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15

60

90

20

Cos^-1 (-x) =_______.

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π +cos^-1 x

π -sin^-1 x

π +sin^-1 x

π -cos^-1 x

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