Sin(2x+#10^o#)=-0.6 find all values for x -180<x<180?

#10^o#

1 Answer
Nghi N
Apr 26, 2018

#- 23^@46; 103^@46#

Explanation:

sin (2x + 10) = - 0.6
Calculator and unit circle give 2 solutions for (2x + 10) -->
a. #(2x + 10) = - 36^@87#,
#2x = - 46^@87#
#x = - 23^@46#
b. #2x + 10 = 180 - (- 36^@87) = 216^@87#
#2x = 206^@87#
#x = 103^@46#

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