Hey there,
The whole number(or mixed fraction) would be: 1 2/3
The improper fraction would be: 5/3
:)
5,28-(x4-3,,,,,,,,,,,,,,,,,
The answer is most likely (c).
Answer: 7/8
Cos2x has 3 formulas, Sinx is given in the question, we should use the formula with sinus. I guess that's the solution.