Expression 9: co secant left parenthesis, tan left parenthesis, StartFraction, 7 Over "x" Superscript, "y" , Baseline , EndFraction , right parenthesis , right parenthesis equals co secant left parenthesis, tan left parenthesis, StartFraction, 7 Over "y" Superscript, "x" , Baseline , EndFraction , right parenthesis , right parenthesiscsctan7xy=csctan7yx
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Expression 10: "x" to the 4th power plus "y" to the 4th power equals 100x4+y4=100
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Expression 11: negative absolute value left parenthesis, sin "x" minus .3tan "x" , right parenthesis times negative "x"−abssinx−.3tanx·−x
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Expression 12: ceiling left parenthesis, mod left parenthesis, "x" , 4 , right parenthesis , right parenthesis plus StartFraction, floor left parenthesis, "x" , right parenthesis Over 5 , EndFractionceilmodx,4+floorx5
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Expression 13: StartFraction, cot left parenthesis, mod left parenthesis, pi , "x" , right parenthesis , right parenthesis Over csc left parenthesis, mod left parenthesis, ceil left parenthesis, "x" , right parenthesis , 3 pi , right parenthesis , right parenthesis , EndFractioncotmodπ,xcscmodceilx,3π
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Expression 14: floor left parenthesis, tan left parenthesis, sec "x" , right parenthesis , right parenthesisfloortansecx
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Expression 15: mod left parenthesis, ceil left parenthesis, sec left parenthesis, arccos "x" , right parenthesis , right parenthesis , 3 , right parenthesismodceilsecarccosx,3
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Expression 16: "r" equals cosine left parenthesis, StartFraction, pi Superscript, "e" , Baseline theta Superscript, "e" , Baseline Over 2 , EndFraction , right parenthesis minus 4natural log left parenthesis, theta Superscript, 1.6 1 8 0 3 3 9 8 8 7 , Baseline , right parenthesisr=cosπeθe2−4lnθ1.6180339887
00
domain \theta Minimum:
less than or equal to theta less than or equal to≤θ≤
12 pi12π
domain \theta Maximum:
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Expression 17: "r" equals theta Superscript, negative theta , Baseline plus pi Superscript, "e" , Baseline minus "r" cosine left parenthesis, 2 theta , right parenthesis times "r" cubed cosine left parenthesis, "r" , right parenthesisr=θ−θ+πe−rcos2θ·r3cosr
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Expression 18: "y" Superscript, "x" , Baseline equals "x" Superscript, "y" , Baseline cosine left parenthesis, "x" pi , right parenthesisyx=xycosxπ