I really don’t know maybe you’ll have summer school that’s what we have to do if we fail an online course we have to go to summer school.
The cofunction of cos is sin(90-x)
90 degrees is equal to PI/2
The cofunction becomes sin(PI/2 - 2PI/9)
Rewrite both fractions to have a common denominator:
PI/2 = 9PI/18
2PI/9 = 4PI/18
Now you have sin(9PI/18 - 4PI/18)
Simplify:
Sin(5PI/18)
Answer:
3/5
Step-by-step explanation:
8-5/6-1
3/5
Answer: look at the picture i attached!