Solve the trigonometric equation √2 cos − 1 2 cos + 1 = 0 in the interval [0, 360°). find the exact values of the solutions in d egrees
2 answers:
First, you would combine all the like terms- cos(x)(√2 - 12)= -1 Then you would Isolate x: cos(x) equals -1/(√2 - 12) cos(x) equals 0.0944 x equals cos⁻¹(0.0944) x equals 84.57 degrees aka (360-x=275.42 degrees) Hope I got this right :/
Assuming cos means cos(x); Combine all like terms: cos(x)(√2 - 12)= -1 Isolate x: cos(x)= -1/(√2 - 12) cos(x)=0.0944 x=cos⁻¹(0.0944) x= 84.57 degrees or (360-x=275.42 degrees) Hope I helped :)
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Step-by-step explanation:
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