Question 17
For acute x with $\sin x=24/25$, find $(1/\cos x-\tan x)\cos^2x$.
HKIMO 2019 THPT (Grades 10–12 shared) National Final (Heat) Set 02 Question 17
HKIMO · HKIMO 2019 THPT (Grades 10–12 shared) National Final (Heat) Set 02
HKIMO · HKIMO 2019 THPT (Grades 10–12 shared) National Final (Heat) Set 02