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Use the unit circle to find the value of sin(-90)
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Use the unit circle to find the value of sin(-90)

Use the unit circle to find the value of sin(-90)-example-1
User Simple Sandman
by
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1 Answer

1 vote

Answer:

Explanation:

sin (-90*) = -sin (90*)
...
sin = y
...
-sin(90*) = -1

User Oviroa
by
8.5k points
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