Page 95 - Math SL HB Sem 1
P. 95
CIRCT-]LAR T'UNCTIONS AND TRIGONOMEI'RY
Example 4: Given thatcos d = k and 0 < e < find
|
(a) cos (z + d)
(b) cos(2r _ 0) (c) cos aag')
1
Example 5: Given that sind: k and 0.x <a
find
2
(a) tan 0 (b) cosec 0 (i sec (zr+0)
4-tt
