What's the meaning of 3tan 30, 3cos 45 and 2Sin 60

This is the specific value
Tan 30 degree = root 3 / 3
So 3tan 30 degrees = root 3
Cos45 = radical 2 / 2
3cos 45 degree = 3 radical 2 / 2
Sin60 = root 3 / 2
2sin60 = root 3

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