Datrys sin101/a=sin31/34

$$\frac { \sin 101 } { a } = \frac { \sin 31 } { 34 }$$

Datrys ar gyfer a

$$a = \frac{166876621186102880}{2575190374550271} = 64\frac{2064437214885536}{2575190374550271} \approx 64.801663922$$

Camau ar gyfer Datrys Hafaliad Llinol

Evaluate trigonometric functions in the problem

$$\frac{0.981627183447664}{a} = \frac{0.5150380749100542}{34}$$

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 34a, lluoswm cyffredin lleiaf a,34.

$$34\times 0.981627183447664=a\times 0.5150380749100542$$

Lluosi 34 a 0.981627183447664 i gael 33.375324237220576.

$$33.375324237220576=a\times 0.5150380749100542$$

Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.

$$a\times 0.5150380749100542=33.375324237220576$$

Rhannu’r ddwy ochr â 0.5150380749100542.

$$a=\frac{33.375324237220576}{0.5150380749100542}$$

Ehangu \frac{33.375324237220576}{0.5150380749100542} drwy luosi'r rhifiadur a'r enwadur gyda 10000000000000000.

$$a=\frac{333753242372205760}{5150380749100542}$$

Lleihau'r ffracsiwn \frac{333753242372205760}{5150380749100542} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.

$$a=\frac{166876621186102880}{2575190374550271}$$