b) Hence solve for if cos5cos 3 +sin5sin 3 + cos = 0 (5) QUESTION 8 [16] a) Show that = 2cosx can be rewritten as . (3) sin(x − 30) b) Hence solve for ; 90] if sin(x = 2cosx (4) x [−270 −30)
b) Hence solve for if cos5cos 3 +sin5sin 3 + cos = 0 (5) QUESTION 8 [16] a) Show that sin(x − 30) = 2cosx can be rewritten as . (3) b) Hence solve for x [−270 ; 90] if sin(x −30) = 2cosx (4)
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