Additional Mathematics 0606 / Trigonometry / 3.703.70: Cosec identity and equation0606/23/O/N/21 — Question 5 · 8 marksMark as done · Save for later · Show all solutions(a)Show that cosec x−sin x=cot x cos x\mathrm{cosec}\,x - \mathrm{sin}\,x = \mathrm{cot}\,x\,\mathrm{cos}\,xcosecx−sinx=cotxcosx.[4]▸ Answer(b)Hence solve the equation cosec x−sin x=cosec x cos x\mathrm{cosec}\,x - \mathrm{sin}\,x = \mathrm{cosec}\,x\,\mathrm{cos}\,xcosecx−sinx=cosecxcosx for 0∘<x<360∘0^{\circ} < x < 360^{\circ}0∘<x<360∘.[4]▸ Answer▸ Official mark scheme← 3.69: Triangle with surds: side, sine and height3.16: Inequality and quadratic equation →
