bai 1 :biet do thi ham so y=\(\left(\sqrt{a}-3\right)x\) di qua \(N\left(\sqrt{5};\sqrt{5}\right)\)( a la hang so)vay a=?Bai 2:Cho \(Q\left(x\right)=ax^2+bx+c\)thoa man :\(Q\left(0\right)=1;Q\left(1\right)=6;Q\left(2\right)=5\)Tinh bbai 3 :tinh gia tri bieu...
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bai 1 :
biet do thi ham so y=\(\left(\sqrt{a}-3\right)x\) di qua \(N\left(\sqrt{5};\sqrt{5}\right)\)( a la hang so)
vay a=?
Bai 2:
Cho \(Q\left(x\right)=ax^2+bx+c\)thoa man :
\(Q\left(0\right)=1;Q\left(1\right)=6;Q\left(2\right)=5\)Tinh b
bai 3 :tinh gia tri bieu thuc
\(A=3x+2y+z\)biet \(\left(x-3y^2\right)+\left(y-1\right)^2+\left(x+z\right)^2=0\)
