What is Sin (225) degrees?

0 ⤊

Please show some work!!!Thanks

2006-12-03 09:13:57 · 4 answers · asked by joe123chem 1 in Science & Mathematics ➔ Mathematics

Sine is negative in the third quadrant.

sin (225) = -sin (45)

Jose is correct, fizixx is wrong.

2006-12-03 09:18:02 · answer #1 · answered by ? 6 · 0⤊ 0⤋

Sin (225)
225 - 180 = 45

So: Sin (225) = Sin (45) = ~ -0.707

Sin; 0-180 degrees (+)
180-360 (-)

2006-12-03 10:26:05 · answer #2 · answered by Dee_Smithers 4 · 0⤊ 0⤋

Same as sin(45).....1/Sqrt(2)

2006-12-03 09:16:51 · answer #3 · answered by Anonymous · 0⤊ 0⤋

- [(2)^(1/2)] / (2)

by the way, all sinuses in the 3rd quadrant are negative.

2006-12-03 09:17:33 · answer #4 · answered by jose_juan_prieto 1 · 0⤊ 0⤋