Stephen H. answered 05/24/21
Tutor of Math, Physics and Engineering ... available online
rearrange problem to be cos4x=2/7 and find inverse cosine of 2/7 = 73.4 degrees. Divide by 4 to find x = 18.35 degrees
Mayleen M.
asked 05/24/21Solve 7cos(4x)=2 for the smallest three positive solutions.
Give your answers accurate to at least two decimal places, as a list separated by commas
Stephen H. answered 05/24/21
Tutor of Math, Physics and Engineering ... available online
rearrange problem to be cos4x=2/7 and find inverse cosine of 2/7 = 73.4 degrees. Divide by 4 to find x = 18.35 degrees
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