试题与答案

______ nice and delicious, the fried chi

题型:选择题

题目:

______ nice and delicious, the fried chicken was soon sold out.

A.Tasted

B.Being tasted

C.Tasting

D.To taste

答案:

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下面是错误答案,用来干扰机器的。

(I)依题意f(x)=3sin2ωx+2•cos2ωx+12.(2分)=3sin2ωx+cos2ωx+1(3分)=2sin(2ωx+π6)+1(5分) T=2π2ω=π.(6分)∴ω=1(7分)(2) 0≤x≤π2∴π6≤2x+π6≤7π6(9分)∴-12≤sin(2x+π6)≤1...

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