Question #c5319

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Question #c5319

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Answer 1 · 2017-11-18T04:15:29

$76^{\circ} 72; 346^{\circ} 72$ $76^@72; 346^@72$

Explanation:

tan 2y = - 0.5
Calculator and unit circle give -->
$2 y = - 26^{\circ} 56$ $2y = - 26^@56$ and $2 y = - 26.56 + 180 = 153^{\circ} 44$ $2y = -26.56 + 180 = 153^@44$

a. 2y = - 26.56 --> $y = - 13^{\circ} 28$ $y = - 13^@28$ ,
or $y = 360 - 13.28 = 346^{\circ} 72$ $y = 360 - 13.28 = 346^@72$ (co- terminal)
b. 2y = 153.44 --> $y = 76^{\circ} 72$ $y = 76^@72$
Answers for (0, 360)
$76^{\circ} 72; 346^{\circ} 72$ $76^@72; 346^@72$

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Question #c5319

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