Answer Happy

I need help on number four. 4. You are given that u is an angle in the third quadrant with tan u = 5
%, and w is an angle in the fourth
quadrant with cos w
His
(a) Draw each angle, and its right-angled triangle on coordinate axes.
(2) (b) Calculate the length of the unknown side in each of the right-angled triangles you drew in part (a)
In each case you must show your work.
(2)
(c) Calculate the exact value of each expression below. In each case, write down the work leading to
your answer.
(i)
sin (u + w)
(1)
(il) cos(u - w)
(ini)
cos 22
(1)
(iv)
tan hu
(2)
(b) Calculate the length of the unknown side in each of the right-angled triangles you drew in part (a). In each case you must show your work. (2) (c) Calculate the exact value of each expression below. In each case, write down the work leading to your answer. (1) sin(u + w) (1) (ii) cos(u - w) (1) (iii) cos2u (1) (iv) tanju (2)

4. You are given that is an angle in the third quadrant with tan u = f, and w is an angle in the fourth quadrant with cos w = (a) Draw each angle, and its right-angled triangle on coordinate axes. (2) 42 85²-30 S²+12²= 132 16P25 Tul is trun=7169 12 59 4 13 #3 Angle u and a right-angled triangle for u Angle w and a right-angled triangle for w 1