00:01
We want to compute the sine of theta over 2.
00:07
We want to compute that if sine of theta is equal to 0 .35 and pi over 2, and theta is between pi over 2 and pi, accurate to four decimal places.
00:32
Well, one way we could try to find this is finding the inverse sign of 0 .35, and the inverse sine of 0 .35 is 0 .36, which pi over 2 is 1 .5, since this does not fall within it.
01:02
And so what we can do is add.
01:14
So if this is when sign is positive, we'll get the same value if theta is pi minus 0 .36.
01:34
Just to show you what i mean, sign of .36 is the 3 .532, but also the sign of high minus .36 is the same thing.
01:52
So, pi minus .36 is 2 .78...