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(
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(
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A
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B
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2 蟺
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C
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蟺
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f
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.
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f
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x
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C
2
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y
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sin
飪?/p>
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3
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A
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x
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蟺
6
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x
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蟺
12
C
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x
锛?/p>
蟺
6
D
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x
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12
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2
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2
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k
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Z
)
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2
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12
(
k
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0
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12
.
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3
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)
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x
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(
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锛?/p>
A
锛?/p>
2蟺
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3蟺
2
C
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蟺
2
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f
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锛?/p>
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飪?/p>
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飪?/p>
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x
锛?/p>
蟺
6
.
鏁呮渶灏忔鍛ㄦ湡涓?/p>
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A
4
锛?/p>
(
鈽?/p>
)
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飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?/p>
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蟺
4
锛?/p>
蟺
2
涓婁负鍑忓嚱鏁扮殑鏄?/p>
(
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锛?/p>
A
锛?/p>
y
锛?/p>
sin
飪?/p>
飪?/p>
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飪?/p>
飪?/p>
飪?/p>
2
x
锛?/p>
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2
B
锛?/p>
y
锛?/p>
cos
飪?/p>
飪?/p>
飪?
飪?/p>
飪?/p>
飪?/p>
2
x
锛?/p>
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2
C
锛?/p>
y
锛?/p>
sin
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
飪?
x
锛?/p>
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2
D
锛?/p>
y
锛?/p>
cos
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
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x
锛?/p>
蟺
2
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(
绛涢�夋硶
)
鈭靛嚱鏁扮殑鍛ㄦ湡涓?/p>
蟺.
鈭存帓闄?/p>
C
銆?/p>
D
锛?/p>
鈭靛嚱鏁板湪
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
飪?
蟺
4
锛?/p>
蟺
2
涓婃槸鍑忓嚱鏁帮紝
鈭?