F ind all values of x in the range 0° <= x <= 180° satisfying tan(x+45°)= 8tan(x)
tan(x)+tan(45)/1-tan(x)tan(45) = 8tan(x)
8tan2(x)-7tan(x)+1=0
tan(x)=0.6952 or 0.1798
x = arctan(0.6952) = 34.8070 deg and arctan(0.1798) = 10.1932 deg
TM
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