sinx-cosx=0.5
平方
sin²x+cos²x-2sinxcosx=0.25
1-2sinxcosx=0.25
sinxcosx=0.375
原式=(sin²x+cos²x)(sin^4x-sin²xcos²x+cos^4x)
=1*[(sin²x+cos²x)²-3(sinxcosx)²]
=0.578125
sinx-cosx=0.5
平方
sin²x+cos²x-2sinxcosx=0.25
1-2sinxcosx=0.25
sinxcosx=0.375
原式=(sin²x+cos²x)(sin^4x-sin²xcos²x+cos^4x)
=1*[(sin²x+cos²x)²-3(sinxcosx)²]
=0.578125