Expression 6: left parenthesis, "t" cos left parenthesis, "u" , right parenthesis , "t" sin left parenthesis, "u" , right parenthesis , right parenthesistcosu,tsinu
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
11
domain t Maximum:
6
Expression 7: left parenthesis, left parenthesis, 1 plus cos left parenthesis, "t" , right parenthesis , right parenthesis cos left parenthesis, "t" , right parenthesis minus 1 , left parenthesis, 1 plus cos left parenthesis, "t" , right parenthesis , right parenthesis sin left parenthesis, "t" , right parenthesis , right parenthesis1+costcost−1,1+costsint
domain t Minimum: 00
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
7
Q: left parenthesis, left parenthesis, 1 plus cos left parenthesis, "u" , right parenthesis , right parenthesis cos left parenthesis, "u" , right parenthesis minus 1 , left parenthesis, 1 plus cos left parenthesis, "u" , right parenthesis , right parenthesis sin left parenthesis, "u" , right parenthesis , right parenthesis1+cosucosu−1,1+cosusinu