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Vibhor Gupta asks : The locus of a point P which moves such that 2 PA = PB, where A(0, 0) and B(4, –3) are points, is

(A) 5x² – 5y² – 72x + 54y + 225 = 0

(B) 5x² + 5y² – 72x + 54y + 225 = 0

(C) 5x² + 5y² + 72x – 54y + 225 = 0

(D) 5x² + 5y² – 72x – 54y – 225 = 0

Tag : point,moves,locus,points

On : 18/05/2013 12:20:33

45.37% of total test takers marked (B)
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(A)

(13.89%)
(B)

(45.37%)
(C)

(31.48%)
(D)

(9.26%)

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Answers (1)

Vibhor gupta says :

18/05/2013 12:20:33

IN QUESTION 2PA=PB GIVEN,BUT IN SOL.HOW CAN YOU TAKE 2PA=3PB?

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Prasanth asks :

is equal to:

(A)

(B)

(C) 2a.log a + b

(D) none of these

Tag : equal

On : 18/05/2013 12:17:20

72.28% of total test takers marked (B)
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(A)

(10.5%)
(B)

(72.28%)
(C)

(9.11%)
(D)

(8.12%)

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Prasanth says :

18/05/2013 12:17:20

ans is wrong,ans is c

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Rishith asks : An 8 kg metal block of dimensions 16 cm x 8 cm x 6 cm is lying on a table with its face of largest area touching the table. If g = 10 ms^-2, the minimum amount of work done in making it stand vertically is

(A) 0.4 J

(B) 6.4 J

(C) 64 J

(D) 4 J

Tag : largest,making,stand,metal,touching,work,lying,table,vertically,minimum

On : 18/05/2013 12:09:35

44.66% of total test takers marked (B)
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(A)

(4.85%)
(B)

(44.66%)
(C)

(22.33%)
(D)

(23.3%)

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Rishith says :

18/05/2013 12:09:35

wat is h here????????????????????????

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Vibhor Gupta asks : The domain of is

(A)

(B)

(C)

(D)

Tag : domain

On : 18/05/2013 12:03:19

57.14% of total test takers marked (D)
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(A)

(8.87%)
(B)

(16.75%)
(C)

(17.24%)
(D)

(57.14%)

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Vibhor gupta says :

18/05/2013 12:03:19

IN THIS QUESTION OPTION IS WRONG,IN THE FOURTH OPTION CLOSE INTERVAL DOESN'T PUT BEFORE ONE

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Swetha Kamaraju asks : dxis equal to

(A)

(B)

(C)

(D)

Tag : equal

On : 18/05/2013 12:01:14

70.93% of total test takers marked (D)
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(A)

(14.59%)
(B)

(6.69%)
(C)

(7.79%)
(D)

(70.93%)

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Swetha kamaraju says :

18/05/2013 12:01:14

what is the ans for this?