Question # 1

Sec 30° = ______

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3K

K2

K3

K

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If S_rdenotes the sum of the first r terms of a G.P., then S_n, S_2n- S_n, S_3n- S_2nare in

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A.P.

G.P.

H.P.

None of these

-2, 1, 4, 7,.... is ______

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Harmonic sequence

Arithmetic sequence

Geometric sequence

Arithmetic series

I f a =5i + 2j, then|a| =

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√13

√7

1/√13

√29

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c = 0

c = -1

c = -2

c = 1

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A joint equation of the lines through the origin and perpendicular to the lines ax2 +2hxy +by2 =0 is indentical is ax2 +2hxy +by2 =0 if

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h2 = ab

a + b =0

a = b

a≠ b

a = b = 0

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(a - c)²= b²- c²

(a - c)²= b²+ c²

(a + c)²= b²- c²

(a + c)²= b²+ c²

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0

-1

1

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Mathematics General Science Test Medium Mode MCQs With Answers

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