The answer are All A.
Kindly explain those to me!!
winter1
2
Didn’t get what the last question is referring to, I’m sorry 
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I kinda don’t get the 59
Is Sin x = sin (pi-x) or sin (pi-theda)?
winter1
4
Yup! So considering the fact that 5pi / 18 = 13pi / 18,
x should be larger than 5*pi / 18.
However since the question said that x is 0 < x < pi, the only possible range is option A.
If x is something like 15pi / 18 (equivalent to 3pi / 18), it’s going to be smaller than 5*pi / 18.
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