Răspunsuri

2014-11-04T21:58:51+02:00
1,339(a ^{2}+2ab+b ^{2}  )+0,037 a^{2} +0,037ab-1,115 a^{2} +0,1617a+0,1617b-0,226a-1,178=0

1,339a ^{2}+2,678ab+1,339b ^{2} +0,037 a^{2} +0,037ab-1,115 a^{2} +0,1617a+0,1617b-0,226a-1,178=0


0,261 a^{2} +2,715ab+1,339b^{2}-0,0643a+0,1617b-1,178

1,1915a+1,1915b+1,045a-1,178=0

1,1915a+1,1915b+1,045a-1,178=0

2,2365a+1,1915b=1,178

1,1915b=1,178-2,2365a

b= \frac{1,178-2,2365a}{1,1915}

0,261a ^{2}+2,715a* \frac{1,178-2,2365a}{1,1915}  +1,339*(\frac{1,178-2,2365a}{1,1915}) ^{2}-0,0643a+0,1617*\frac{1,178-2,2365a}{1,1915}-0,226a-1,178=0

0,261 a^{2}+ \frac{3,1982a-6,0720a ^{2}}{1,1915}  +1,339* \frac{1,3876-5,2691a+5,0019a ^{2} }{1,1915 ^{2} }-0,0643a+ \frac{0,1904-0,3616a}{1,1915} -1,178=0

0,261* 1,1915^{2} +1,1915*( 3,1982a-6,0720a^{2})+1,8579-7,0553a+6,6975 a^{2} -0,0645*(1,1915) ^{2}+1,1915*(0,1904-0,3616a)-1,178*(1,1915) ^{2}=0

0,3705 a^{2} +3,8106a-7,2347 a^{2} +1,8579-7,0553+6,6975a^{2}-0,0912+0,2268-0,4308a-1,6723

-0,1667a ^{2} -3,6755a+0,3212=0 |*(-1)

0,1667a ^{2} +3,6755a-0,3212=0

Δ= b^{2} -4ac=(3,6755) ^{2} -4*0,1667*(-0,3212)=13,5093+0,2141=13,7234

 a_{1} = \frac{-b+ \sqrt{Δ} }{2a} = \frac{-3,6755+ \sqrt{13,7234} }{2*0,1667} =0,0870

 a_{2} = \frac{-b- \sqrt{Δ} }{2a} = \frac{-3,6755- \sqrt{13,7234} }{2*0,1667} =-22,1356

a_{1} =0,0870

b_{1}= \frac{1,178-2,2365*0,0780}{1,1915}=0,8422

a_{2} =<span>-22,1356</span><span>

b_{2}=\frac{1,178-2,2365*(-22,1356)}{1,1915}=17,6895