表达式3: left parenthesis, "t" cos left parenthesis, "b" , right parenthesis , "t" sin left parenthesis, "b" , right parenthesis , right parenthesistcosb,tsinb
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 1010
3
表达式4: "b" equals 5.1b=5.1
00
1010
4
表达式5: left parenthesis, "t" cos left parenthesis, "c" , right parenthesis , "t" sin left parenthesis, "c" , right parenthesis , right parenthesistcosc,tsinc
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 1010
5
表达式6: "c" equals negative "a" minus StartFraction, 3 pi Over 2 , EndFractionc=−a−3π2
