4.1 Übungen
Aus Online Mathematik Brückenkurs 1
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Transform to radians | Transform to radians | ||
Version vom 15:05, 3. Aug. 2008
Exercise 4.1:1
Write in degrees and radians
| a) | \displaystyle \displaystyle \frac{1}{4} \textrm{ varv} | b) | \displaystyle \displaystyle \frac{3}{8} \textrm{ varv} |
| c) | \displaystyle -\displaystyle \frac{2}{3}\textrm{ varv} | d) | \displaystyle \displaystyle \frac{97}{12} \textrm{ varv} |
Laden...Exrecise 4.1:2
Transform to radians
| a) | \displaystyle 45^\circ | b) | \displaystyle 135^\circ | c) | \displaystyle -63^\circ | d) | \displaystyle 270^\circ |
Exercise 4.1:3
Determine the length of the side marked \displaystyle \,x\,\mbox{.}
| a) | b) | 4.1 - Figur - Rätvinklig triangel med sidor 12, x och 13 | c) | 4.1 - Figur - Rätvinklig triangel med sidor 8, x och 17 |
Exercise 4.1:4
| a) | Determine the distance between the points (1,1) and(5,4). |
| b) | Determine the distance between the points(-2,5) and(3,-1). |
| c) | Find the point on the x-axis which lies as far from the point (3,3) as from (5,1). |
Exercise 4.1:5
| a) | Determine the equation of a circle having its centre at (1,2) and radius 2. |
| b) | Determine the equation of a circle having its centre at (2,-1) and contains the point (-1,1). |
Exercise 4.1:6
Sketch the following circles
| a) | \displaystyle x^2+y^2=9 | b) | \displaystyle (x-1)^2+(y-2)^2=3 |
| c) | \displaystyle (3x-1)^2+(3y+7)^2=10 |
Exercise 4.1:7
Sketch the following circles
| a) | \displaystyle x^2+2x+y^2-2y=1 | b) | \displaystyle x^2+y^2+4y=0 |
| c) | \displaystyle x^2-2x+y^2+6y=-3 | d) | \displaystyle x^2-2x+y^2+2y=-2 |
Exercise 4.1:8
How many resolutions does a wheel of radius 50 cm make when it rolls 10m?
Exercise 4.1:9
On a clock, the second hand is 8 cm long. How large an area does it sweep through in 10 seconds?
Exercise 4.1:10
A washing line of length 5,4 m hangs between two vertical trees that are at a distance of 4,8 m from each other. One end of the line is fixed 0,6 m higher than the other, and a jacket hangs from a hanger 1,2 m from the tree where the line has its lower point of attachment. Determine how far below the lower attachement point the hanger is hanging.(that is, the distance \displaystyle \,x\, in the figure).
