Additional Mathematics 0606 / Trigonometry / 2.42.4: Quadratic in sin and tan–sin equation0606/21/M/J/18 — Question 11 · 10 marksMark as done · Save for later · Show all solutions(a)Solve 10cos2x+3sinx=910\cos^{2} x + 3\sin x = 910cos2x+3sinx=9 for 0°<x<360°0^{\degree} < x < 360^{\degree}0°<x<360°.[5]▸ Answer(b)Solve 3tan2y=4sin2y3\tan 2y = 4\sin 2y3tan2y=4sin2y for 0<y<π0 < y < \pi0<y<π radians.[5]▸ Answer▸ Official mark scheme← 1.26: Sine curve: constants and sketch2.15: Cosecant identity and equation →
