Question # 1

cos 315° = ______

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The 8th term of (1+2x) ^-1/2is

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-221/16 x⁷

-225/18 x⁷

-407/9 x³

-429/16 x⁷

A diagonal matrix in which the diagonal elements are equal is called a

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Null matrix

Identity matrix

Scalar matrix

Row matrix

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f(x) = x²

f(x²) = x

f(x) = x

none of these

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The law of consines

The law of sines

The law of tangents

None of these

The familiar plane curves, namely circle, ellipse, parabola and hyperbola are called:

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cones

conics

nappes

apex

A quadratic equation has two

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roots

degree

variables

constants

an -an-1,∀n∈N∧n>1 in an A.P is called

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Common difference

nth term

Common ratio

None of these

The tangents drawn from the point P to a circle are imaginary if

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P is on the circle

P is inside the circle

P is outside the circle

none of these

A disjunction of two statement p and q is true

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p is false

q is false

Both p and q are false

One of p and q is true

A circle drawn inside a triangle and touching its sides is called

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In-circle

Circum circle

Escribed circle

None of these

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