Question # 1

The nth term in G.P 3,-6,12,....................... is

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3(-2)^n-1

2(-2)ⁿ⁺¹

3(-2)ⁿ

4(-2)^n-1

The sum of the series 1+5+9+13+17+21+25+29 is

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140

130

120

110

A farmer possesses 100 hectometers of land and wants to grow corn and wheat. Cultivation of corn requires 3 hours per hectometer while cultivation of wheat requires 2 hours pert hectometer. Working hours cannot exceed 240. If he gets a profit of Rs. 20 per hectometer for corn and Rs. 20 per hectometer for wheat. The profit function for the farmer is

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P(x,y) = 20x + 15y

P(x,y) = 2x + 3y

P(x,y) = x + y

P(x,y) = 3x + 2y

A point of a solution region where two of its boundary lines intersect, is called

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Boundary

Inequality

Half Plane

Vertex

If the 19th term of A.P is 8 and the 4th term is 20, then the first term is

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20.2

25.5

27.5

37.5

Two natural numbers whose sum is 25 and difference is 5, are

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25, 20

20, 10

20, 5

15, 10

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 common difference of the sequence 7,4,1, .......... is

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1

-3

5

0

Sin x + Cos x = 1 x =

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Multiplicative inverse of "1" is

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0

+ 1

1

{0, 1}

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