Question # 1

A point where two of its boundary lines intersect is called

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Corner point

Feasible point

Vertex

Feasible solution

Which of the following represents a vector

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(x, y)

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If A is a skew-symmetric matrix of order n and P, any square matrix of order n.prove that P' AP is

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Skew-symmetric

Symmetric

Null

Diagonal

The st. lines whose direction cosines satisfy al + bm + cn = 0, fmn + gnl + hlm=0 are perpendicular if

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A square matrix A = [aij] is upper triangular when

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cij = 0

bij = 0

aij = 0 for all i > j

dij = 0

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cos 2x + c

- cos 2x + c

tan 2x + c

cot 2x + c

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If a statement S(n) is true for n = 1 and the truth of S(n) for n = k implies the truth of S(n) for = k + 1, then S(n) is true for all

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Real numbers n

Integers n

Positive integers n

None of these

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parallel vectors

perpendicular vectors

concurrent vectors

collinear vectors

s > t then

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(s - t)²> (t - s)²

(s - t)²< (t - s)²

(s - t)²= (t - s)²

None

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