Answer:
b) [tex]\displaystyle 32,58°[/tex]
Step-by-step explanation:
[tex]\displaystyle 1\frac{6}{7} = csc∠A \\ 32,57897039...° = csc^{-1}\: 1\frac{6}{7} \\ 32,58° ≈ 32,57897039...° \\ \\ \frac{OPPOSITE}{HYPOTENUSE} = sin\:θ \\ \frac{ADJACENT}{HYPOTENUSE} = cos\:θ \\ \frac{OPPOSITE}{ADJACENT} = tan\:θ \\ \frac{HYPOTENUSE}{ADJACENT} = sec\:θ \\ \frac{HYPOTENUSE}{OPPOSITE} = csc\:θ \\ \frac{ADJACENT}{OPPOSITE} = cot\:θ[/tex]
Hence, you have your answer.
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