In the diagram above, T represents the construction of angle .....
In the diagram above, \(\overline{MN} || \overline{KL}\), \(\overline{ML}\) and \(\overline{KN}\) intersect at X. |\(\overline{MN}\)| = 12cm, |\(\overline{MX}\)| = 10cm and |\(\overline{MN}\)| = 9cm. If the area of \(\triangle\) MXN is 16cm\(^2\), calculate the area of \(\triangle\) LXK
The chord of a circle of radius 17 cm is 30 cm long. Calculate the distance of the chord from the centre of the circle.
In the diagram above, PQ is parallel to TU, < PQR = 50º, < QRS = 86º, and < STU = 64º. Calculate the value of x
a. Copy and complete the table for the relation y = 2cos2x - 1
| x | 0º | 30º | 60º | 90º | 120º | 150º | 180º |
| y = 2cos 2x - 1 | 1.0 | 0 | 1.0 |
b. Using a scale of 2cm = 30º on the x - axis and 2cm = 1 unit on the y - axis, draw the graph of y = 2cos2x - 1 for 0º ≤ x ≤ 180º
c. On the same axes, draw the graph of y = \(\frac{1}{180}\)(x - 360)
d. Use your graphs to find the values of x for which 2cos2x + \(\frac{1}{2}\) = 0
