How do you calculate $tan A = 8.4$ $tan A= 8.4$ ?

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How do you calculate $tan A = 8.4$ $tan A= 8.4$ ?

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Answer 1 · 2016-12-21T14:15:55

$A = 83^{\circ} 21 + K 180^{\circ}$ $A = 83^@21 + K180^@$

Explanation:

tan A = 8.4
Calculator gives:
tan A = 8.4 --> $A = 83^{\circ} 21$ $A = 83^@21$
Trig unit circle gives another A that has the same tan value (8.5):
A = 83.21 + 180 = 263^@21
Answers for interval (0, 360):
$83^{\circ} 21, 263^{\circ} 21$ $83^@21, 263^@21$
General answers:
$A = 83^{\circ} 21 + k 180^{\circ}$ $A = 83^@21 + k180^@$

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How do you calculate $tan A = 8.4$ $tan A= 8.4$ ?

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