Asked by Lenard

(a) sin x if x = (1/4)degree

Round all answers to three decimal places

I got 12.053, 0.210, 4.363.. None of those seem to be right. What am I doing wrong? am i just punching the numbers in my calculator incorrectly?
Answered by Reiny
my keystrokes on my calculator:
2nd
sin
.25
=

to get 14.478°
but the sine is positive in I and II
so x could also be 180 - 14.478 = 165.522°

there are an infinite number of solutions, just add/subtract 360° to any existing answer to produce more.
Answered by Steve
who said anything about sin<sup>-1</sup> ?
Answered by Reiny
for keeping an eye on me.
I just have to read more carefully, I read it as

sinx = 1/4
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