已知tana=1求√2sin(2a+π/4)+1

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已知tana=1求√2sin(2a+π/4)+1已知tana=1求√2sin(2a+π/4)+1已知tana=1求√2sin(2a+π/4)+1tana=1a=π/4+kπ(k∈Z)√2sin(2a+

已知tana=1求√2sin(2a+π/4)+1
已知tana=1求√2sin(2a+π/4)+1

已知tana=1求√2sin(2a+π/4)+1
tana=1 a=π/4+kπ(k∈Z)
√2sin(2a+π/4)+1 = √2sin[2x(π/4+kπ)+π/4]+1
= √2sin(π/2+π/4+2kπ)+1
=√2 sin3/4π+1
=√2 x √2/2 +1
=2