[問題] 兩題高中數學求解

[Buccaneer (報應吧...)]

1.      If Y=3sin(x+100)+ 5sin(x+700), Find the max of Y.
2.      Have known f(cos3x)=2sinx+1, f(sin3x)=?????

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推 realcrucify:1.3+5=8...就這樣