# Answer on Trigonometry Question for Melissa

Question #25416

4cos(x)=-1+cos(x)

Expert's answer

4cos(x)=-1+cos(x)At first let's gather cosines at the left part of the equation:

3cos(x)=-1

cos(x)=-1/3According to the general formulas for solutions of elementary trigonometric equations we obtain the following answer:

x=2pi*n+-cos^-1(-1/3)

3cos(x)=-1

cos(x)=-1/3According to the general formulas for solutions of elementary trigonometric equations we obtain the following answer:

x=2pi*n+-cos^-1(-1/3)

Need a fast expert's response?

Submit orderand get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

## Comments

## Leave a comment