Datrys sin52^circ/45=sin118^circ/a

$$\frac { \sin 52 ^ { \circ } } { 45 } = \frac { \sin 118 ^ { \circ } } { a }$$

Datrys ar gyfer a

$$a = \frac{79465283357303439}{1576021507213444} = 50\frac{664207996631240}{1576021507213444} \approx 50.421446023$$

Camau ar gyfer Datrys Hafaliad Llinol

Evaluate trigonometric functions in the problem

$$\frac{0.788010753606722}{45} = \frac{0.8829475928589271}{a}$$

All y newidyn a ddim fod yn hafal i 0 gan nad ydy rhannu â sero wedi’i ddiffinio. Lluoswch ddwy ochr yr hafaliad wrth 45a, lluoswm cyffredin lleiaf 45,a.

$$a\times 0.788010753606722=45\times 0.8829475928589271$$

Lluosi 45 a 0.8829475928589271 i gael 39.7326416786517195.

$$a\times 0.788010753606722=39.7326416786517195$$

Rhannu’r ddwy ochr â 0.788010753606722.

$$a=\frac{39.7326416786517195}{0.788010753606722}$$

Ehangu \frac{39.7326416786517195}{0.788010753606722} drwy luosi'r rhifiadur a'r enwadur gyda 10000000000000000.

$$a=\frac{397326416786517195}{7880107536067220}$$

Lleihau'r ffracsiwn \frac{397326416786517195}{7880107536067220} i'r graddau lleiaf posib drwy dynnu a chanslo allan 5.

$$a=\frac{79465283357303439}{1576021507213444}$$