What do I do wrong? Trigonometry

Silvestr

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Joined
May 31, 2019
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tg A = tg B / cos C

A= 145° 49'49''
C = 23°26.44'

Need to find B

tg A = tg B / 0.917538086825

-0.679141161015 = tg B / 0.917538086825

tg B = -0.679141161015 *0.917538086825 = −0,62313788156

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