PauletteD389054 PauletteD389054
  • 31-10-2022
  • Mathematics
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Give the sine, cosine and tangent for the point on the Unit Circle at −5/4

Give the sine cosine and tangent for the point on the Unit Circle at 54 class=

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PaizlieM766886 PaizlieM766886
  • 31-10-2022

we have the angle at -5pi/4

so

the point in the unit circle lies on the 2 quadrant

so

sin(-5pi/4)=sin(pi/4)=√2/2

cos(-5pi/4)=-cos(pi/4)=-√2/2

tan(-5pi/4)=-tan(pi/4)=-1

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