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: An option is 3/12...
Step-by-step explanation:
You can just multiply the numerator and denominator my the same number to find an equivalent
Answer:
Step-by-step explanation:
Table
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