zaleznosci miedzy funkcjami
: 1 sty 2014, o 15:33
jak mozna udowonic te zaleznosci
\(\displaystyle{ \sin150^\circ=\sin(180^\circ-30^\circ)=\sin30^\circ}\)
\(\displaystyle{ \sin150^\circ=\sin(90^\circ+60^\circ)=\cos60^\circ}\)
\(\displaystyle{ \sin(90^\circ-60^\circ)=\cos30^\circ}\)
\(\displaystyle{ \sin150^\circ=\sin(180^\circ-30^\circ)=\sin30^\circ}\)
\(\displaystyle{ \sin150^\circ=\sin(90^\circ+60^\circ)=\cos60^\circ}\)
\(\displaystyle{ \sin(90^\circ-60^\circ)=\cos30^\circ}\)