兰色吉他 幼苗
共回答了14个问题采纳率:100% 举报
1年前
回答问题
已知x,y满足x^2+y^2-6x+8y+25=0,求y^x的值
1年前3个回答
已知|x-y-2|+x^+2xy+y的平方=0,求x+2y的值
1年前1个回答
已知:4x^2+4xy+2y^2+6y+9=0,求x-y的值
已知想x^2-2x+y^2+6y+10=0,求x+y的值
,已知点P X,Y 满足等式X平方+Y平方-6x+8y+25=0,求X Y
1年前6个回答
已知A=2x—4y,B=—2x²+6x—3(y—x),求:3A-B;
1.已知2x-y=0,求x²-2xy+y²分之2x+y·(x-y)的值
1年前4个回答
已知:x^2+y^2-6x+8y+25=0 求实数x,y,的值
已知,单项式M,N满足2x(M+3x)=6x^2y^2+N,求M,N.
已知x、y满足x²+y²-6x+2y+10=0,求³√(x²-y²)的
1年前2个回答
已知函数f(x)=-x^3+6x^2-9x+m,求f(x)的单调增区间
已知函数f(x)=-3/2x2 6x 9lnx a (1)求f(x)的单调递减区间(2)若函数f
进来看看当X=?时,分式2X-1/3-5X的值为-1已知X^2-3Y^2=2XY,X>0,Y>0,求X+2Y/X-Y的值
已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求M,N
已知x满足x²+3x-1=0,那么代数式3x/3x²-6x÷(x+2-5/x-2)的值为( )
已知×=根号3+1,y=根号3-1,求下列各式的值.(1)x的平方+2xy+y的平方; (2)x的平方-y的平方.
已知x、y满足x²+y²-6x+2y+10=0,求³√(x²-y²)的值.
已知X等于根号3加1,Y等于根号3减1,求下列各式的值:(1)X平方加2XY加Y平方(2)X平方减Y平方
请快些已知y=(3x-2)^1/2+(2-3x)^1/2+√2/2,求x+y的值答案是(4+3√2)/6
1年前5个回答
已知A:B:C=3:4:5 且A+2B-3C=-14 求2A-2B+C的值
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精彩回答
I feel very happy, because I ________ to be the host of the show at the meeting.
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