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绗竴绔?/p>
缁
1.
鍒嗗埆鍒ゆ柇鍥撅紤
-1
鎵�绀哄悇鍑芥暟娉㈠舰鏄繛缁椂闂翠俊鍙疯繕鏄鏁ｆ椂闂翠俊鍙凤紝
鍚屾椂鍒ゆ柇杩炵画鏃堕棿淇?/p>
鍙峰嚱鏁板彇鍊兼槸鍚﹂噺鍖栵紝鏄鏁ｆ椂闂翠俊鍙风殑鏄惁涓烘暟瀛椾俊鍙凤紵
鍥撅紤
-1
瑙ｏ細
锛堬絹锛夎繛缁ā鎷熶俊鍙凤紱
锛堬絺锛夎繛缁噺鍖栦俊鍙凤紱
锛堬絻锛夌鏁ｆ暟瀛椾俊鍙凤紱
锛堬絼锛夌鏁ｆā鎷熶俊鍙凤紱
锛堬絽锛夌鏁ｆ暟瀛椾俊鍙凤紱
锛堬絾锛夌鏁ｆ暟瀛椾俊鍙枫�?/p>
2.
鍒嗗埆姹備笅鍒楀悇鍛ㄦ湡淇″彿鐨勫懆鏈?/p>
T
锛?/p>
1)
cos(15
)
cos(30
)
t
t
飥?/p>
锛?/p>
2)
10
j
t
e
锛?/p>
3)
2
[6cos(7
)]
t
锛?/p>
瑙ｏ細
鍒ゆ柇涓�涓寘鍚湁澶氫釜涓嶅悓棰戠巼鍒嗛噺鐨勫鍚堜俊鍙锋槸鍚︿负涓�涓懆鏈熶俊鍙凤紝
闇�瑕佽�冨療鍚勫垎閲忎俊
鍙风殑鍛ㄦ湡鏄惁瀛樺湪鍏�嶆暟锛岃嫢瀛樺湪锛?/p>
鍒欒澶嶅悎淇″彿鐨勫懆鏈熶负鍏舵渶灏忓叕鍊嶆暟锛?/p>
鑻ヤ笉瀛樺湪锛?/p>
鍒欒
澶嶅悎淇″彿涓洪潪鍛ㄦ湡淇″彿銆?/p>
1)
2
15
飦?/p>
2)
5
飦?/p>
3)
2
14
飦?/p>
3.
缁欏嚭鑳介噺淇″彿鍜屽姛鐜囦俊鍙风殑瀹氫箟锛屽垽鏂笅鍒椾俊鍙锋槸鑳介噺淇″彿杩樻槸鍔熺巼淇″彿锛?/p>
1
锛?/p>
3cos(15
)
0
(
)
0
0
t
t
f
t
t
飦?/p>
飩?/p>
飪?/p>
飥?/p>
飪?
飥?/p>
飪?/p>
2
锛?/p>
5
0
(
)
0
0
t
e
t
f
t
t
飥?/p>
飪?/p>
飩?/p>
飥?/p>
飪?
飥?/p>
飪?/p>
3
锛?/p>
(
)
6sin
2
3cos3
f
t
t
t
飥?/p>
飥?/p>
4)
|2
|
(
)
20
sin
2
t
f
t
e
t
飥?/p>
飥?/p>
瑙ｏ細
1
锛夊姛鐜囦俊鍙凤紱
2
锛夎兘閲忎俊鍙凤紱
3
锛夊姛鐜囦俊鍙凤紱
4
锛夎兘閲忎俊鍙?/p>
.