Obraich a-mach co-aontar a' ghraf gu h-ìosal:
\[y = \sin 2x\]
\[y = \cos \frac{1}{2}x\]
\[y = \sin \frac{1}{2}x\]
\[y = \cos 2x\]
\[y = \cos 3x\]
\[y = \cos \frac{1}{3}x\]
\[y = \frac{1}{2}\sin x\]
\[y = \frac{1}{2}\cos x\]
\[y = \frac{1}{2}\sin 2x\]
\[y = \frac{1}{3}\sin x\]
\[y = \frac{1}{3}\cos x\]
\[y = \frac{1}{3}\sin \frac{1}{3}x\]
\[y = 2\sin 2x\]
\[y = 2\cos 2x\]
Dè a' mheudachd a th' aig graf leis a' cho-aontar \(y = 2\sin 3x + 1\)
1
2
3
Dè a' pheiriad a th' aig a' ghraf leis a' cho-aontar \(y = 2\sin 3x + 1\)
90˚
120˚
180˚
Cia mheud fuasgladh a th' ann dhan cho-aontar \(\sin x = - 0.9\) far a bheil \(0 \le x \textless 360\)
Cia mheud fuasgladh a th' ann dhan cho-aontar \(\sin x = 2\) far a bheil \(0 \le x \textless 360\)
0
Fuasgail an co-aontar \(\sin x = 0.5\) far a bheil \(0 \le x \textless 360\)
\[x = 30^\circ \,agus\,x = 210^\circ\]
\[x = 210^\circ \,agus\,x = 330^\circ\]
\[x = 30^\circ \,agus\,x = 150^\circ\]
Fuasgail an co-aontar \(\cos x = - 0.5\) far a bheil \(0 \le x \textless 360\)
\[x = 60^\circ \,agus\,x = 120^\circ\]
\[x = 120^\circ \,agus\,x = 330^\circ\]
\[x = 120^\circ \,agus\,x = 240^\circ\]
Fuasgail an co-aontar \(5\cos x - 2 = 0\) far a bheil \(0 \le x \textless 360\)
\[x = 66.4^\circ \,agus\,x = 293.6^\circ\]
\[x = 66.4^\circ \,agus\,x = 336.4^\circ\]
\[x = 113.6^\circ \,agus\,x = 246.4^\circ\]