101 Ways To Be Sexy 'Til Seventy And Beyond: How to treat your woman differently and make you

101 Ways To Be Sexy 'Til Seventy And Beyond: How to treat your woman differently and make you

Matematika Sekolah Menengah Atas Bantu matematika dong..
Soal ada di foto

Bantu matematika dong..
Soal ada di foto

Penjelasan dengan langkah-langkah:

1. sin B = de/mi = 2/3

sisi samping =

[tex] \sqrt{3 {}^{2} - 2 {}^{2} } \\ = \sqrt{9 - 4} \\ = \sqrt{5} [/tex]

a. cos B = sa/mi =

[tex] \frac{ \sqrt{5} }{3} [/tex]

b. tan B = de/sa =

[tex] \frac{2}{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } = \frac{2 \sqrt{5} }{5} [/tex]

poinnya dikit