EKSIKA JOINT EVALUATION TEST.

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EKCSKE SIKA JOINT EVALUATION TEST.

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121/2 MATHEMATICS

PAPER 2

MAY/JUNE 2014

TIME: 2 ? HOURS

INSTRUCTIONS TO CANDIDATES.

1) Write your name and index number in the spaces provided above. 2) Sign and write the date of examination in the spaces provided above. 3) This paper consists of two section I and II. 4) Answer ALL questions in section I and only five questions from section II. 5) Answers and working must be written on the question paper in the spaces provided

below each question 6) Marks may be given for correct working even if the answer is wrong 7) Non-programmable electronic calculators may be used.

FOR EXAMINERS' USE ONLY.

SECTION I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 TOTAL

SECTION II 17 18 19 20 21 22 23 24 TOTAL

Grand Total

This paper consists of 12 printed pages. Candidates should check the question paper to ascertain that all pages are printed as indicated and

no questions are missing.

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121/2 Mathematics Turn Over

1

UC4oserrleoc7gt2atorlio.tfh3gom6urs1sxoi6ng80lnwywi.fwt6.io.c49faernve2taeflkiucgasuteerpe,ass.

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For

2 Make 4 the subject of the formula.

t 2m L A

n

3k

(4mks) (3mks)

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121/2 Mathematics Turn Over

3

Express form of

the a/b

rwechuerrreiwnawgw.adfnerdceiembkcaaslreebpeialnsottwepgaeaprsesra.sf.rcaocmtion;

4.372

leaving

your

answer in the (2mks)

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Determine the amplitude, period and the phase angle of the wave represented by the

equation.

y

2 3

sin

2 5

x

40 0

(3mks)

5

Given that 3 3 5 ab 3 5 3 5

5 . Find the values of a and b

(4mks)

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121/2 Mathematics Turn Over

6

Titshevodliummeensgiiovnisngofywaowuwc.rufbarnoesiedwkcaesrreetpo4a.s25tcspmiagpnebiryfsic.3ca.5onmct mfigbuyre2.cm.Find

the

percentage error in (3marks)

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A car was valued at kshs.500,000 in January 2010.Each year its value depreciated at

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12% p.a.After how long would the value depreciate to kshs.250,000? (3mks)

For

8

Given that the matrix

5 x 3x

42 has no inverse, find x.

(2mks)

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121/2 Mathematics Turn Over

9

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10 Find the radius and the co-ordinates of the centre of the circle whose equation is

? x2+ ? y2 =3x ? 5y ? 9.

(3mks)

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121/2 Mathematics Turn Over

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