Question # 1

If A and B are matrices such that AB=BA=I then

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A and B are multiplicative inverse of each other

A and B are additive inverses of each other

. A and B are singular matrices

A and B are equal

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Nilpotent matrix

Singular matrix

Non singular matrix

Diagonal matrix

The equation of the normal to the circle x²+ y²= 25 at(4, 3) is

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3x - 4y = 0

3x - 4y = 5

4x + 3y = 5

4x + 3y = 25

Write the first four terms of the arithmetic sequence if a₁= 5 and other three consecutive terms are 23,26,29

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23, 26, 29, 32

5, 8, 11, 14

8, 11, 14, 17

None of these

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p < r

p > r

p + r < 0

p - r < 0

The circle (x-2)²+ (y+3)²= 4 is not concentric with the circle

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(x-2)²+ (y+3)²= 9

(x+2)²+ (y-3)²= 4

(x-2)²+ (y+3)²= 8

(x-2)²+ (y+3)²= 5

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/h x + 1

Y = x + h - k

Ky = hx - 1

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(0, e)

(0, 1)

None

Sin(a + b) + Sin (a - b) =

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Sin a Cos b

Sin a Sin b

Sin a + Cos b

Sin a - 2 Cos b

The mid point of the line joining (-1, -3) to (3, -5) is

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(1, 1)

(1, -1)

(2, -8)

(1, -4)

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