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5. Exercises

From Förberedande kurs i matematik 1

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===Exercise 5:1===
===Exercise 5:1===
<div class="ovning">
<div class="ovning">
-
Work out (without the help of a calculator)
+
Write the formulas in TeX
{| width="100%" cellspacing="10px"
{| width="100%" cellspacing="10px"
|a)
|a)
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|width="50%" | <math>3-7-4+6-5</math>
+
|width="50%" | <math>\displaystyle\frac{a+b}{d-c}</math>
|b)
|b)
-
|width="50%" | <math>3-(7-4)+(6-5)</math>
+
|width="50%" | <math>\sqrt{3}</math>
|-
|-
|c)
|c)
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|| <math>3-(7-(4+6)-5)</math>
+
|| <math>4x^2 - x</math>
|d)
|d)
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|| <math>3-(7-(4+6))-5</math>
+
|| <math>\sin^2 x + \cos x</math>
|}
|}
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</div>{{#NAVCONTENT: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}}
+
</div>{{#NAVCONTENT:Answer|Answer 5.1:1}}

Revision as of 15:05, 20 January 2009

       Theory          Exercises      


Exercise 5:1

Write the formulas in TeX

a) d−ca+b b) 3 
c) 4x2−x d) sin2x+cosx

Answer


Exercise 5:2

Simplify

a) (3−(7−4))(6−5) b) 3−(((7−4)+6)−5)
c) 3(−7)−4(6−5) d) 3(−7)−(4+6)(−5)

Answer | Solution a | Solution b | Solution c | Solution d

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