f（x)=2sin(2x+π/3),求f(π/4)

1个回答

f(π/4)=2sin(2*π/4+π/3)=2sin5π/6f(2π/4)=2sin(2*2π/4+π/3)=2sin4π/3f(3π/4)=2sin(2*3π/4+π/3)=2sin11π/6f(4π/4)=2sin(2π+π/3)=2sin7π/3=2sinπ/3f(5π/4)=2sin(2*5π/4+π/3)=2sin17π/6=2sin5π/6...

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