"y" Subscript, 1 , Baseline Has graph. To audio trace, press ALT+T.y1
00
00
r1c3:
4cosine alpha4cosα
4sine alpha4sinα
r2c3:
r3c3:
4
Expression 5: "r" equals StartFraction, 1 Over 225 , EndFraction theta plus 0.5 left brace, 0 less than theta less than alpha , right brace Has graph.r=1225θ+0.50<θ<α
00
domain \theta Minimum:
less than or equal to theta less than or equal to≤θ≤
1.81.8
domain \theta Maximum:
5
`\alpha` left parenthesis, 0.4 , 0.3 , right parenthesis0.4,0.3
Label:
6
Expression 7: "y" equals 3 left brace, 4 less than or equal to "x" less than or equal to 5.5 , right brace Has graph. To audio trace, press ALT+T.y=34≤x≤5.5
7
`旋转,看看!` left parenthesis, StartFraction, alpha Over 5 , EndFraction plus 4 , 3 , right parenthesis Has graph. To audio trace, press ALT+T.α5+4,3
Label:
8
9
powered by
powered by
"P" ( "R" cosine alpha , "R" sine alpha )P(Rcosα,Rsinα)