Question Number 106196 by john santu last updated on 03/Aug/20
Commented by john santu last updated on 03/Aug/20
Commented by john santu last updated on 03/Aug/20
$$\mathrm{find}\:\mathrm{the}\:\mathrm{equation}\:\mathrm{of}\:\mathrm{graph}? \\ $$
Commented by bobhans last updated on 03/Aug/20
$$\mathrm{i}\:\mathrm{think}\:\mathrm{no}\:\mathrm{correct}\:\mathrm{choice}\:\mathrm{answer} \\ $$
Commented by mr W last updated on 03/Aug/20
Commented by mr W last updated on 03/Aug/20
$${y}=\mathrm{cos}\:\left(\mathrm{2}{x}+\mathrm{30}°\right) \\ $$$$\Rightarrow{answer}\:\left({C}\right) \\ $$$${but}\:{the}\:{graph}\:{is}\:{badly}\:{drawn}. \\ $$