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How many values of x with \(0^\circ \le x < 360^\circ\) satisfy \(\sin x = -0.73\)?

Please explaine!! 

thx in advance!!!

 Aug 11, 2020
 #1
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The explanation is here:   https://www.mathsisfun.com/algebra/trig-four-quadrants.html

 

Sine is negative in 3rd and in 4th quadrant

 

sin( 226.88639405º ) = - 0.73         ( 3rd quadrant )

 

sin( 313.113606º ) = - 0.73           ( 4th quadrant )

 Aug 12, 2020
 #2
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OMG thx so much!! I forgot thats what it meant!!!!

Guest Aug 12, 2020

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