sin2x-cos2x+1如何化解可等于√2sin(2x-π/4)+1

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sin2x-cos2x+1如何化解可等于√2sin(2x-π/4)+1sin2x-cos2x+1如何化解可等于√2sin(2x-π/4)+1sin2x-cos2x+1如何化解可等于√2sin(2x-π

sin2x-cos2x+1如何化解可等于√2sin(2x-π/4)+1
sin2x-cos2x+1如何化解可等于√2sin(2x-π/4)+1

sin2x-cos2x+1如何化解可等于√2sin(2x-π/4)+1
y=sin2x-cos2x+1
=√2(√2/2sin2x-√2/2cos2x)+1
=√2sin(2x-π/4)+1