นิพจน์ 19: 1 equals StartFraction, "x" squared Over "a" squared , EndFraction plus StartFraction, "y" squared Over "b" squared , EndFraction1=x2a2+y2b2
19
นิพจน์ 20: 1 equals StartFraction, "x" squared plus 11 Over "a" squared , EndFraction plus StartFraction, "y" squared plus 50 Over .6 "b" squared , EndFraction1=x2+11a2+y2+50.6b2
20
นิพจน์ 21: 1 equals StartFraction, "x" squared plus 10 Over "a" squared , EndFraction plus StartFraction, "y" squared plus 10 Over "b" squared , EndFraction1=x2+10a2+y2+10b2
นิพจน์ 24: "s" equals StartFraction, negative "d" Subscript, "e" "g" "r" "e" "e" "O" "f" "R" "o" "t" "a" "t" "i" "o" "n" , Baseline pi Over 180 , EndFractions=−degreeOfRotationπ180
24
Imaginary Stick
ซ่อนโฟลเดอร์นี้จากนักเรียน
25
"x" Subscript, 1 , Baselinex1
"y" Subscript, 1 , Baseliney1
"m"m
"n"n
r1c3:
"w"w
"z"z
r2c3:
r3c3:
26
Circle for the Moon
ซ่อนโฟลเดอร์นี้จากนักเรียน
27
นิพจน์ 28: left parenthesis, "x" minus "a" left parenthesis, cos "s" , right parenthesis , right parenthesis squared plus left parenthesis, "y" minus "b" left parenthesis, sin "s" , right parenthesis , right parenthesis squared equals 1x−acoss2+y−bsins2=1
