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Find the exact values of cos (3pi/4radians) and sin (3pi/4 Radians)
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Find the exact values of cos (3pi/4radians) and sin (3pi/4 Radians)

User Darnell
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If you are doing on apex the answer is √2/2

User Luis Ascorbe
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cos (3π/4) can be written as,
cos (π-π/4) = -cosπ/4 = -1/√2

similarly sin3π/4=sin(π-π/4) = sin π/4 = 1/√2

User Whd
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