Skryf elk van die volgende as die
verhouding van 'n skerp hoek en
bepaal dan die waarde van die funksie :
1.1 sin 150°
[ A 1.1 ]
1.2 cos 210°
[ A 1.2 ]
1.3 tan 135°
[ A 1.3 ]
1.4 sec 150°
[ A 1.4 ]
1.5 cosec 315°
[ A 1.5 ]
1.6 cot 240°
[ A 1.6 ]
1.7 cos 225°
[ A 1.7 ]
1.8 cosec 120°
[ A 1.8 ]
1.9 cot 135°
[ A 1.9 ]
1.10 sin 330°
[ A 1.10 ]
1.11 cos 210°
[ A 1.11 ]
1.12 sec 300°
[ A 1.12 ]
1.13 cos 120°
[ A 1.13 ]
1.14 tan 210°
[ A 1.14 ]
1.15 sin 225°
[ A 1.15 ]
1.16 cos 315°
[ A 1.16 ]
1.17 sin 300°
[ A 1.17 ]
1.18 cos 120°
[ A 1.18 ]
1.19 tan 120°
[ A 1.19 ]
1.20 tan 225°
[ A 1.20 ]
Evalueer / Bepaal die waarde van :
$$ \hspace*{2 mm}\mathrm{2.1\kern3mm\sin\ 30°\ \bold{.}\ cos\ 60°\ \bold{.}\ cot\ 45°\kern2mm\ } $$
[ A 2.1 ]
$$ \hspace*{2 mm}\mathrm{2.2\kern3mm\sec\ 30°\ \bold{.}\ cos\ 30°\ \bold{.}\ tan\ 60°\kern2mm\ } $$
[ A 2.2 ]
$$ \hspace*{2 mm}\mathrm{2.3\kern3mm\ 4 \bold{.}\ sin\ 60°\ + tan\ 45°\ +\ 2 \bold{.}\ cot\ 30°\kern2mm\ } $$
[ A 2.3 ]
$$ \hspace*{2 mm}\mathrm{2.4\kern3mm\sec^2\ 0°\ +\ cos^2\ 30°\ +\ cosec^2\ 45°\kern2mm\ } $$
[ A 2.4 ]
$$ \hspace*{2 mm}\mathrm{2.5\kern3mm\frac{cosec\ 120°\ \bold{.}\ tan\ 135°\ \bold{.}\ sin\ 150°}{sec\ 150°}\kern2mm\ } $$
[ A 2.5 ]
$$ \hspace*{2 mm}\mathrm{2.6\kern3mm\frac{−\ sin\ 120°\ \bold{.}\ cos\ 150°\ + sec^2\ 135°\ −\ cos\ 0°}{sin^2\ 135°\ \bold{.}\ cosec\ 135°}\kern2mm\ } $$
[ A 2.6 ]
$$ \hspace*{2 mm}\mathrm{2.7\kern3mm\frac{cos\ 240°\ \bold{.}\ sin\ 330°\ \bold{.}\ tan\ 120°}{sin\ 150°\ \bold{.}\ tan\ 210° \bold{.}\ cos\ 120°}\kern2mm\ } $$
[ A 2.7 ]
$$ \hspace*{2 mm}\mathrm{2.8\kern3mm\frac{sin\ 150°\ \bold{.}\ cos\ 225°\ \bold{.}\ sec\ 10°}{cosec\ 330°\ \bold{.}\ cosec\ 45° \bold{.}\ cosec\ 260°}\kern2mm\ } $$
[ A 2.8 ]
$$ \hspace*{2 mm}\mathrm{2.9\kern3mm\frac{sin\ 150°\ \bold{.}\ cos\ 210°}{tan\ 330°}\kern2mm\ } $$
[ A 2.9 ]
$$ \hspace*{2 mm}\mathrm{2.10\kern3mm\frac{sin\ 210°\ \bold{.}\ cos\ 300°\ \bold{.}\ cot\ 150°}{cos\ 120°\ \bold{.}\ cot\ 240° \bold{.}\ sin\ 330°}\kern2mm\ } $$
[ A 2.10 ]
$$ \hspace*{2 mm}\mathrm{2.11\kern3mm\frac{4}{3}cos^2\ 330°\ −\ \frac{1}{2}\ sec^2\ 45°\ −\ \frac{1}{3}\ sin\ 60°\kern2mm\ } $$
[ A 2.11 ]