1) Suppose the triangle has sides a, b and c and that angles opposite these sides are A, B and C, respectively. If B = 90deg,sin A = 2/5 and a = 10cm, find b and c.
2) Graph functions over one period. Identify x-interceptsand coordinates of highest point on graph.
(i) y = 3 cos 3π x
(ii) y = - sin(2x - π)
3) Graph equation for 1 complete cycle.
i) y = -1/2 tan (x/3)
ii) y = 2 sec x/4
4) If sin θ = - 5/13 and θ is in quadrant III, compute the remaining five trigonometric values of θ.
5) Convert
(i) 155deg to radian measure
(ii) 7π/18 radians to degrees