Tim GTNN cua P=(canX-1)/(canX+2)
P=(3can x/x+22+canx/canx-2=3x-5canx/4-x):(2canx-1/canx-2-1)
y=k(canx-3)2+(k+1)(canx+2)2
Xác dịnh k để y là hàm số bậc nhất ?
18(x^2)-18x(canx)-17x-8(canx)-2=0
Tim x,y nguyen thoa man 1+can(x+y+3)=canx+can y
giai phuong trinh 4x^2+ 3x+ 3= 4x canx+ 3 +2 can2x- 1
tim cac so m,n,p thoa man : m+n+p+8=2canm-1 + 4cann-2 +6canp-3
tim cac so x,y,z thoa man :canx+cany-1 +canz-2 = 1/2(x+y+z)
tim cac so x,y,z thoa man :x+y+z+4=2canx-2 +4cany-3+6canz-5
rút gọn biểu thức x-1/canx-1 căn(xy-2can ý+1)^2/(x-1)^4
phan tich thanh nhan tu x+canx-12
\(x+\sqrt{x}-12=\left(\sqrt{x}+4\right)\left(\sqrt{x}-3\right)\)
phan tich thanh nhan tu x+canx-12
\(x+\sqrt{x}-12=\left(\sqrt{x}+4\right)\left(\sqrt{x}-3\right)\)