Additional Mathematics 0606 / Trigonometry / 3.343.34: Cosine: sketch, amplitude, period0606/21/M/J/23 — Question 2 · 5 marksMark as done · Save for later · Show all solutionsThe function ggg is defined for 0∘⩽x⩽120∘0^{\circ} \leqslant x \leqslant 120^{\circ}0∘⩽x⩽120∘ by g(x)=2+4 cos 3xg(x) = 2 + 4\,\mathrm{cos}\,3xg(x)=2+4cos3x.(a)On the axes, sketch the graph of y=g(x)y = g(x)y=g(x).[3]▸ Answer(b)State the amplitude of ggg.[1]▸ Answer(c)State the period of ggg.[1]▸ Answer▸ Official mark scheme← 3.33: Cot–sec relation and cosec equation3.35: Area and integration →
