Page 34 - Ebook Trigonometri_Krisna Hasugian_MESP 2019
P. 34
= 9
2
= 3
3
sin =
5
4 9
√ 1 − (− ) √ 9 3√10
5 = ±√ =
sin = ± 5 = ± 2 10 10
2 2
Since sin is positive in the third quadrant we take the positive answer
Need more help? Click below for Learning Video 5
Khan Academy video 6
33
