Cia mheud fuasgladh a th' ann dhan cho-aontar \(sinx = -0.9\) far a bheil \(0\leq \times \textless 360\)?
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Cia mheud fuasgladh a th' ann dhan cho-aontar \(sinx = 2\) far a bheil \(0 \leq \times \textless 360\)?
Fuasgail an co-aontar \(sinx = 0.5\) far a bheil \(0 \leq \times \textless 360\)
\(x = 30^\circ\) agus \(x =210^\circ\)
\(x = 30^\circ\) agus \(x =150^\circ\)
\(x = 210^\circ\) agus \(x = 330^\circ\)
Fuasgail an co-aontar \(cosx = -0.5\) far a bheil \(0\leq x\textless 2\pi\)
\(x=\frac{\pi }{3}\), \(x=\frac{2\pi }{3}\)
\(x=\frac{2\pi }{3}\), \(x=\frac{11\pi }{6}\)
\(x=\frac{2\pi }{3}\), \(x=\frac{4\pi }{3}\)
Fuasgail an co-aontar \(5cosx - 2=0\) far a bheil \(0\leq x\textless 360\)
\(x = 66.4^\circ\) agus \(x = 293.6^\circ\)
\(x = 66.4^\circ\) agus \(x = 336.4^\circ\)
\(x = 113.6 ^\circ\) agus \(x = 246.4^\circ\)
Fuasgail an co-aontar \(\sqrt{2}cosx-1=0\) far a bheil \(0\leq x\textless\pi\)
\[x=\frac{\pi }{4}\]
\(x=\frac{\pi }{4}\), \(\frac{3\pi }{4}\)
\(x=\frac{\pi }{4}\), \(\frac{7\pi }{4}\)
Fuasgail an co-aontar \(2\cos3x+1=0\), far a bheil \(0\leq x\textless 360^\circ\)
\[x=40^\circ ,\,80^\circ\]
\[x=60^\circ,\,120^\circ,\,240^\circ\]
\[x=40^\circ,\,80^\circ,\,160^\circ,\,200^\circ,\,280^\circ,\,320^\circ\]
Fuasgail an co-aontar \(3\,cos\,x+1 = 0.766\), far a bheil \(0\leq x\leq 540^\circ\)
\[x = 94.5^\circ,\,265.5^\circ,\,454.5^\circ\]
\[x = 94.5^\circ,\,265.5^\circ\]
\[x = 85.5^\circ,\,274.5^\circ,\,445.5^\circ\]
Fuasgail an co-aontar \(6sin^{2}x+sin\,x-1=0\), far a bheil \(0\leq x\leq 2\pi\)
\[x=\frac{\pi }{6},\frac{5\pi }{6}\]
\[x=0.3,2.8,\frac{7\pi }{6},\frac{11\pi }{6}\]
\[x=\frac{7\pi }{6},\frac{11\pi }{6}\]
Fuasgail an co-aontar \(2\,cos (x+60)=\sqrt{3}\), far a bheil \(0\leq x\leq 360^\circ\)
\[x=270^\circ ,\,330^\circ\]
\[x =30^\circ ,\,330^\circ\]
\[x =150^\circ,\,210^\circ\]