0.5×2÷0.5×2
(-0.5)+(9/2)+(-19/2)+9.75=?
2(X-7)=0.5x+2
0.5(8-2×)+2×=18.8÷2
0.5 0.5 0.5 0.5 0.5 =2填表上什么符号才能等于2
为什么2arctg(1/(2^0.5))=arctg(2*(2^0.5))
最好MATLABf=(a-((x^2-b^2)^0.5/b)+atan((x^2-b^2)^0.5/b))*x^2+(x
y=2x^2-4x-8 y=0.5x^2+2x-1
0.5*g*(T+0.15)^2-0.5*g*T^2=2
已知曲线y=ln(x+2)+0.5x^2+2x+0.5
2比0.5化简
2.68*0.5+7.32/2