"Mohon Pakai Cara nya ya"
Penjelasan dengan langkah-langkah:
~ Cosec A = 3
[tex] \frac{ml}{de} = \frac{3}{1} [/tex]
maka mi = AC = 3
de = BC = 1
[tex]sa \: = \sqrt{ {mi}^{2} } - \: {de}^{2} [/tex]
[tex] = \sqrt{ {3}^{2} - 12 } [/tex]
[tex] = \sqrt{9 - 1} [/tex]
[tex] = \sqrt{8} [/tex]
[tex]sa \: = \sqrt[2]{2} = > sa \: = \alpha \beta = \sqrt[2]{2} [/tex]
~ P . cot + C tan A
[tex]8. \frac{1}{tanc \:} .tan \: a[/tex]
[tex] = 8.1 \frac{ab}{bc} \times \frac{bc}{ab} [/tex]
[tex] = 8. \frac{bc}{ab} \times \frac{bc}{ab} [/tex]
[tex] = 8.1 \sqrt[2]{2} . \: \frac{1}{ \sqrt[2]{2} } [/tex]
[tex] = 8. \frac{1}{8} [/tex]
[tex] = 1.[/tex]