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Someone help. I do not understand.

Someone help. I do not understand.-example-1

1 Answer

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Explanation:

SinP = sin30° = 1/2

sinQ = sin60° = root3/2

cosR = cos90° = 0

cosQ = cos60° = 1/2

sinR = sin90° = 1

User Hichame Yessou
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