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Bert Peters · Answer 1 · 2019-08-20T03:07:19+0000

Refer to the image, the 270 degrees corresponds to 3/2 pi.

Based on the graph, the value of sin(270) is -1.

So, the answer is -1.

use the graph of y=sin0 to find the value of sin 0 for each value of 0 270°. answers-example-1

Chester Husk · Answer 2 · 2019-08-24T02:38:06+0000

we have that
y=sin O
for O=270°
find the value of sin O

we know that
270 degrees --------> convert to radians-------> is equal to 3pi/2

using a graph tool
see the attached figure

the value of sin O for O=3pi/2 is -1

the answer is
-1

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