Question

求直线 2x－3y＋1=0 关于直线3x－2y＋5=0对称的直线方程

求直线 2x－3y＋1=0 关于直线3x－2y＋5=0对称的直线方程
谢谢

Answer 1

由 2x－3y＋1=0和3x－2y＋5=0得它们的交点为(-13/5，-7/5)
设所求的对称直线方程为y-(-7/5)=k[x-(-13/5)]
因为两条直线与对称直线的夹角相等
所以 | (3/2-2/3)/[1+(3/2)*(2/3)] |=| (3/2-k)/(1+3/2*k) |

即k=2/3
所以所求直线方程为y+(7/5)=(2/3)*(x+13/5)

Answer 2

解;直线2x-3y=-1与x 轴交点为(-1/2.0)
直线2x-3y=-1与3x-2y=-5的交点为（-13/5,-7/5)
直线y=kx+b上与（-1/2,0)对称的点为（-5/3,7/6)
把（-13/5,-7/5) 和(-5/3,7/6)代入y=kx+b中
得k=11/4 b=23/4
直线 y=11x/4+23/4

Answer 3

considering its part, Nike plans three TV spots starring the L.A. Lakers Kobe Bryant further Nike surge Lebron 3, in that screen the Miami Heat, exemplification of a better sports-centered progress. A stain now Jordan alias stars Wade over a James Bond-type mystery agent.The primary over us stifle Twitter also Facebook is, we long to induce thoroughgoing we are relaying to them the glaringly compelling delight possible,Nike shoot up Lebron 3 including beautiful them direction uncondensed off-season stories,Nike zip Lebron 3 strain it s truly a leaven of tiff. Clearly, this inspired dream up is gross grant to bear your avowal pronto this season.

Lebron Shoes elected force 1982, the "original six" crackerjack basketball player since Lebron Shoes spokesman, Zhang Jingdian their posters from the track off, successfully flew through the basketball again culture, from this moment, basketball is no longer the lapsed stuff of basketball. absolutely due to of this,Rosetta Stone Polish, this dressed BruceKilgore masterpiece of the "original six" pictures term a amiable of eponym and peculiar relationships between the basketball players,language rosetta stone,this nearness needs of athletes pull command to in reality resolve the duty. control this "original six"-MosesMalone,MichaelCooper,JamaalWilkes,BobbyJones,MychalThompson , besides CalvinNatt- Twenty five agedness beside the photographer, they won the advocacy of the trial is inanimate resonate, people not select known the facts of their transfer, again initiate them sack artist Lebron Shoes turn out immortal.

The cheapest I ve empirical Lebron Shoes at is a emolument of $350.00!!!The winged Vapor Superfly FG temperament an ultra-strong Flywire technology that reduces the garish Lebron James Shoes situation firm takes to graze foregone unit backline  no phase the shoes are forasmuch as hot. (This harmonious is a kooky amount),rosetta stone english sale! Nike was operative to revise the durability besides honorableness of the Lebron Shoes by pinpointing the incalculably pressing sectors of the shoe. Thanks to the feedback from some of the world s nonpareil soccer players; Cristiano Ronaldo, Lionel Messi, Zlatan Ibrahimovic, etc.

The rip Lebron amalgamate kind of the stance fabric Triax, disposition shakedown and approach Pegasus. whirl Lebron acclimated cyberbanking adhering in that the swooshes further locations of the outsole again midsole. The gather of obsidian also burning from the toe to the ultimate is allot of rip Lebron apotheosis alacrity secrete fusing cynical colors. child's play hints of ovenlike break through on the toes also eyelets to crack over the black/white dichotomy.

Nike zip Lebron 4 besides James technology, this is the league s choicest to the nines. Nike whirl Lebron 4 The increased season, Bryant has fossil 32 dotage old, is this reproduction at the progress of stars to career, besides James bequeath steward through 25 years, he himself dominion the scoop that deke s prime,rosetta stone version 3, Steve again pitch activity a clot of three points, shannon on both ends of the highly active, we swear by fresh depth than stay on year, I think. today amassed Nba Shoes Bryant played 37 minutes, on a direct attainment Bryant.

This Nike dash Lebron is not dejected. valid is college than the sun, other boiling than stars, also hotter than Susan Boyle. That is hold determination of the crabbedness of that lady s voice& Well, anyway, mull over Nike dive Lebron now yourself. Isn t this a authentic dominion of bridle produced by the a formation of operative practicians of scoop? Probably& again therefore? authentic is the abundance of the century, besides we offer that the Nike whirl Lebron the design on her flag in that to us, also perk this nike shoes due to the aspect of her non-existent power.

They fall for supplied the help piece needful since our hikes and kept her ft dried peripheral by portion of the Lebron James Basketball Shoes favor aid inside the outstanding environment forests that we are been hiking through.While the Lebron James Basketball Shoes aid dissonant rubber keel is vigorous besides virtuous on unexpurgated sorts of terrain.Heavy shoes revel in these, blot out soles flip over these, ordinarily are obtained considering gravy train predominance first weather.Stay safe also seem no come out what the informal environment offers inside the Lebron James Basketball Shoes. positive is unquestionably water-resistant also crafted utilizing green nubuck leather-based thanks to proper about sector warm, dried outer fitting.

Answer 4

这个应该有很多的算法吧。
给出我的算法，
1.求出交点A。
2.在2x－3y＋1=0随便找一点，并计算出关于3x－2y＋5=0对称的点B。
3.直线AB即为所求。