a: \(\sin27^0=cos\left(90^0-27^0\right)=cos63^0\)
b: \(cos34^0=\sin\left(90^0-34^0\right)=\sin56^0\)
c: \(\tan11^0=\cot\left(90^0-11^0\right)=\cot79^0\)
d: \(\cot42=\tan\left(90^0-42^0\right)=\tan48^0\)
e: \(\sin25^030p=cos\left(90^0-25^030p\right)=cos\left(64^030p\right)\)
f: \(cos\left(44^015p\right)=\sin\left(90^0-44^015p\right)=\sin\left(45^045p\right)\)
a, \(\sin27^{\circ}=\cos(90^{\circ}-27^{\circ})=\mathbf{\cos}63\mathbf{^{\circ}}\)
b, \(\cos34^{\circ}=\sin(90^{\circ}-34^{\circ})=\mathbf{\sin}56\mathbf{^{\circ}}\)
c, \(\tan11^{\circ}=\cot(90^{\circ}-11^{\circ})=\mathbf{\cot}79\mathbf{^{\circ}}\)
d, \(\cot42^{\circ}=\tan(90^{\circ}-42^{\circ})=\mathbf{\tan}48\mathbf{^{\circ}}\)
e, \(\sin25^{\circ}30^{\prime}=\cos(90^{\circ}-25^{\circ}30^{\prime})=\mathbf{\cos}64\mathbf{^{\circ}}30\mathbf{^{\prime}}\)
f, \(\cos44^{\circ}15^{\prime}=\sin(90^{\circ}-44^{\circ}15^{\prime})=\mathbf{\sin}45\mathbf{^{\circ}}45\mathbf{^{\prime}}\)
