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guest
· 8 years ago
· FIRST
The way it is worded makes it incorrect
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the_gayming_singer
· 8 years ago
Wait can a mathy person explain this because I just put Sine(pi/2) into a calculator and it came up with like .0027...
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deleted
· 8 years ago
Pi/2 is a quadrantal angle which mean it lies on an axis. Pi/2 lies on the Y-axis at (0,1) and sin = y so sin(pi/2) = 1.
9
thethirdi
· 8 years ago
Yeah your calculator may be in degrees because it calculated pi/2 which is about 1.07 or so, and sin (1.07 degrees) is very close to 0, sin (0) = 0
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thethirdi
· 8 years ago
1.57, my bad
human_number1229
· 8 years ago
If you switch your calculator to radians and put in sin(pi/2) it should come up with 1 (because on the unit circle pi/2 falls on the point (0,1))
lenny
· 8 years ago
mathsubstance
2
lenny
· 8 years ago
be cos
bwaters
· 8 years ago
1 is not the sine of pi/2
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