2sin (2x+tt/3) x {-tt/4,tt/4}最小值
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2sin(2x+tt/3)x{-tt/4,tt/4}最小值2sin(2x+tt/3)x{-tt/4,tt/4}最小值2sin(2x+tt/3)x{-tt/4,tt/4}最小值y=2sin(2x+π/3
2sin (2x+tt/3) x {-tt/4,tt/4}最小值
2sin (2x+tt/3) x {-tt/4,tt/4}最小值
2sin (2x+tt/3) x {-tt/4,tt/4}最小值
y=2sin(2x+π/3).
因为:
-π/4