Question

Giải giúp

Answer 1

\(cos18^0=sin72^0\)

\(cos52^0=sin38^0\)

Có \(sin25^0< sin38^0< sin48^0< sin68^0< sin72^0< sin75^0\)

\(\Rightarrow\)\(sin25^0< cos52^0< sin48^0< sin68^0< cos18^0< sin75^0\)

Vậy...

Answer 2

Sin75,cos52,sin48,sin68,cos18,sin75