5. Exercises

From Förberedande kurs i matematik 1

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Revision as of 12:33, 20 January 2009

       Theory          Exercises      


Exercise 5:1

Work out (without the help of a calculator)

a) \displaystyle 3-7-4+6-5 b) \displaystyle 3-(7-4)+(6-5)
c) \displaystyle 3-(7-(4+6)-5) d) \displaystyle 3-(7-(4+6))-5
Answer
Answer 5.1:1
Solution a
Solution 5.1:1a
Solution b
Solution 5.1:1b
Solution c
Solution 5.1:1c
Solution d
Solution 5.1:1d


Exercise 5:2

Simplify

a) \displaystyle (3-(7-4))(6-5) b) \displaystyle 3-(((7-4)+6)-5)
c) \displaystyle 3\cdot(-7)-4\cdot(6-5) d) \displaystyle 3\cdot(-7)-(4+6)/(-5)
Answer
Answer 5.1:2
Solution a
Solution 5.1:2a
Solution b
Solution 5.1:2b
Solution c
Solution 5.1:2c
Solution d
Solution 5.1:2d
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