Additional Mathematics 0606 / Trigonometry / 2.142.14: Sine and secant quadratic equations0606/22/M/J/17 — Question 10 · 9 marksMark as done · Save for later · Show all solutions(i)Solve 4sin(3x−π4)=34\sin\left(3x - \tfrac{\pi}{4}\right) = 34sin(3x−4π)=3 for 0≤x≤π20 \le x \le \tfrac{\pi}{2}0≤x≤2π radians.[4]▸ Answer(ii)Solve 2tan2y+sec2y=14secy+32\tan^{2} y + \sec^{2} y = 14\sec y + 32tan2y+sec2y=14secy+3 for 0°≤y≤360°0^{\degree} \le y \le 360^{\degree}0°≤y≤360°.[5]▸ Answer▸ Official mark scheme← 2.3: Prove sec identity and solve modulus equation2.23: Modulus sine, tan and cot equations →
