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|{:(,1,(3pi)/(10),(2pi)/(10)),(,0,"cos"(...

`|{:(,1,(3pi)/(10),(2pi)/(10)),(,0,"cos"((3pi)/(10)),sin((2pi)/(10))),(,0,"sin"((3pi)/(10)),cos((2pi)/(10))):}|` का मान ज्ञात कीजिएः

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