Question # 1

Range of sec x is ______

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[-1, 1]

R

Negative real numbers

R = {x | -1 < x < 1}

The unit vector along z-axis is

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none of these

The value of x, and y, when (x + iy)²= 5 + 4i

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X = 2, y = 1

X = -2, y = 1

X = 2, y = -1

X = 2, y = 2

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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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Evert element of A is in B

Every element of B is in A

Every element of A is in B'

Every element of A is in A

xy= 2 is:

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a constant function

an identity function

an improper function

implicit function

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One-one but not onto

One-one and onto

Onto but not one-one

Neither one-one nor onto

Power set of difference set N-W is

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Empty set

Infinite set

Singleton set

{0,∅}

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2x + 2y

4 - x²

-x/y

x/y

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