Question 17
$x$ is acute and $\cos x=24/25$. Find $(\sin x-\tan x)/\sin^2x$.
HKIMO 2020 THPT (Grades 10–12 shared) National Final (Heat) Set 01 Question 17
HKIMO · HKIMO 2020 THPT (Grades 10–12 shared) National Final (Heat) Set 01
HKIMO · HKIMO 2020 THPT (Grades 10–12 shared) National Final (Heat) Set 01