what are the solutions to cos (30) = -1 in the interval (0,2radian)

Question

what are the solutions to cos (30) = -1 in the interval (0,2radian).
 
Please I need step by step instructions on how the answer was found. 
 
P.S also looking for a tutor who can tutor me online only. Looking for best rates as well.
 
Thank You SO Much,
Bella

Nataliya D. · Accepted Answer

Bella, make sure, that you copied the problem correctly. I believe, that you missed the variable.  cos30o = (√3) / 2  ≠ - 1 cos 180o = - 1

what are the solutions to cos (30) = -1 in the interval (0,2radian)

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what are the solutions to cos (30) = -1 in the interval (0,2radian)

1 Expert Answer

Still looking for help? Get the right answer, fast.

OR

RELATED TOPICS

RELATED QUESTIONS

if cosa+sina=2cosathen prove cosa-sina=2sina

if you were to find the cos75°, which formulas could you use? Would you get the same answer using both methods? How would you know?

if sin teta = -1/3 and teta does not lie in the quadrant 3 find the value of cos teta

Simplify : Tan^(-1) {a.cosx - b.sinx/ b.cosx + a.sinx} If x € (-p/2 , +p/2)

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