Expression 4: "s" Subscript, "t" "e" "p" , Baseline left parenthesis, "t" , "a" , right parenthesis equals 2 times arc tangent left parenthesis, "a" cot left parenthesis, 2 pi "l" Subscript, "o" "g" , Baseline left parenthesis, "t" , right parenthesis , right parenthesis , right parenthesisstept,a=2·arctanacot2πlogt
4
Expression 5: "r" Subscript, "w" "a" "v" "e" , Baseline left parenthesis, "t" , right parenthesis equals 1 plus "t" "o" Subscript, "n" "e" , Baseline left parenthesis, "t" , right parenthesis left parenthesis, 1 half sin left parenthesis, "s" Subscript, "t" "e" "p" , Baseline left parenthesis, "t" , 2 , right parenthesis , right parenthesis minus 1 quarter sin left parenthesis, "s" Subscript, "t" "e" "p" , Baseline left parenthesis, "t" , 1 , right parenthesis , right parenthesis , right parenthesisrwavet=1+tonet12sinstept,2−14sinstept,1
5
Expression 6: "t" Subscript, "h" "e" "t" "a" , Baseline left parenthesis, "t" , right parenthesis equals 2 pi "t" plus 2 pi "t" "o" Subscript, "n" "e" , Baseline left parenthesis, "t" , right parenthesis left parenthesis, 1 eighth left parenthesis, 1 plus cos left parenthesis, "s" Subscript, "t" "e" "p" , Baseline left parenthesis, "t" , 2 , right parenthesis , right parenthesis , right parenthesis minus StartFraction, 1 Over 24 , EndFraction sin left parenthesis, "s" Subscript, "t" "e" "p" , Baseline left parenthesis, "t" , 1 , right parenthesis , right parenthesis , right parenthesisthetat=2πt+2πtonet181+cosstept,2−124sinstept,1
6
Expression 7: "h" Subscript, "e" "i" "g" "h" "t" , Baseline left parenthesis, "t" , right parenthesis equals 2 "t" "o" Subscript, "n" "e" , Baseline left parenthesis, "t" , right parenthesis left parenthesis, 1 plus cos left parenthesis, "s" Subscript, "t" "e" "p" , Baseline left parenthesis, "t" , 1 , right parenthesis , right parenthesis minus "o" Subscript, "n" "e" , Baseline left parenthesis, "t" , right parenthesis left parenthesis, 1 minus 1 quarter , right parenthesis left parenthesis, 1 plus cos left parenthesis, "s" Subscript, "t" "e" "p" , Baseline left parenthesis, "t" , 2 , right parenthesis , right parenthesis , right parenthesis , right parenthesisheightt=2tonet1+cosstept,1−onet1−141+cosstept,2
7
Expression 8: left parenthesis, "r" Subscript, "w" "a" "v" "e" , Baseline left parenthesis, "t" , right parenthesis times cos left parenthesis, "t" Subscript, "h" "e" "t" "a" , Baseline left parenthesis, "t" , right parenthesis , right parenthesis , "r" Subscript, "w" "a" "v" "e" , Baseline left parenthesis, "t" , right parenthesis times sin left parenthesis, "t" Subscript, "h" "e" "t" "a" , Baseline left parenthesis, "t" , right parenthesis , right parenthesis , "h" Subscript, "e" "i" "g" "h" "t" , Baseline left parenthesis, "t" , right parenthesis , right parenthesisrwavet·costhetat,rwavet·sinthetat,heightt
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
