表达式2: left parenthesis, "b" "t" cos left parenthesis, "b" "t" minus StartFraction, "b" Over 5 , EndFraction , right parenthesis left parenthesis, 1 half , right parenthesis Superscript, StartFraction, "b" Over 10 , EndFraction , Baseline , "b" "t" sin left parenthesis, "b" "t" plus StartFraction, "b" Over 5 , EndFraction , right parenthesis left parenthesis, 1 half , right parenthesis Superscript, StartFraction, "b" Over 10 , EndFraction , Baseline , right parenthesisbtcosbt−b512b10,btsinbt+b512b10
定义域t最小值： 00
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 44
2
隐藏 标签 left parenthesis, 4 "b" cos left parenthesis, 4 "b" minus StartFraction, "b" Over 5 , EndFraction , right parenthesis left parenthesis, 1 half , right parenthesis Superscript, StartFraction, "b" Over 10 , EndFraction , Baseline , 4 "b" sin left parenthesis, 4 "b" plus StartFraction, "b" Over 5 , EndFraction , right parenthesis left parenthesis, 1 half , right parenthesis Superscript, StartFraction, "b" Over 10 , EndFraction , Baseline , right parenthesis4bcos4b−b512b10,4bsin4b+b512b10
