SOLUTION: Find all solutions of the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) 4 cos θ

Algebra.Com
Question 693416: Find all solutions of the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.)
4 cos θ + 1 = 0

Answer by lwsshak3(11628)   (Show Source): You can put this solution on YOUR website!
Find all solutions of the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.)
4 cos θ + 1 = 0
cos θ=-1/4
reference angle≈1.32 in quadrants II and III where cos<0
θ≈1.82+2πk, 4.46+2πk, k=any integer

RELATED QUESTIONS

Find all solutions of the given equation. (Enter your answers as a comma-separated list.... (answered by Fombitz)
Find all solutions of the given equation. (Enter your answers as a comma-separated list.... (answered by lwsshak3)
Find all solutions of the given equation. (Enter your answers as a comma-separated list.... (answered by Fombitz)
Find all solutions of the given equation. (Enter your answers as a comma-separated list.... (answered by stanbon)
Find all solutions of the given equation. (Enter your answers as a comma-separated list.... (answered by Alan3354)
Find all solutions of the given equation. (Enter your answers as a comma-separated list.... (answered by Boreal)
Find all solutions of the given equation. (Enter your answers as a comma-separated list.... (answered by Boreal)
Find all solutions of the given equation. (Enter your answers as a comma-separated list.... (answered by Alan3354)
Solve the given equation. (Enter your answers as a comma-separated list. Let k be any... (answered by lwsshak3)