\(\sqrt{15-x}+\sqrt{3-x}=6\left(ĐK:x\le3\right)\)
\(\Leftrightarrow\left(\sqrt{15-x}\right)^2=\left(6-\sqrt{3-x}\right)^2\)
\(\Leftrightarrow15-x=36+3-x-12\sqrt{3-x}\)
\(\Leftrightarrow\sqrt{3-x}=2\Leftrightarrow x=-1\)(TM)
Vậy nghiệm của phương trình là : x = -1
giải phương trình
(căn( x+5)-can (x+3))(1-can(x2+8x+15))=2
10*can(8+x^3)=3(x^2-x+6)
giai pt:
1)can(2(x+1)(x+3))+can((x+1)(x-1))=2(x+1)
2)can(x)-can(x+1)-can(x+4)+can(x+9)=0
giai cac phuong trinh sau
a) x + 5 can x - 6 =0
b) x - can x + 1/4 = 0
giai cac phuong trinh sau
a) x + 5 can x - 6 =0
b) x - can x + 1/4 = 0
giai cac phuong trinh sau
a) x + 5 can x - 6 =0
b) x - can x + 1/4 = 0
phan tich ;can (x+10x+21)=3can(x+3) + 2can(x+7)-6
tim z,y,z thoa
can x cong can tat ca y tru 1 cong can tat ca z tru 2 bang 1 phan 2 ( x cong y cong z)
tim GTN cua B bang 1 phan x tru can x cong 1
tim x thuoc z de can x cong 1 phan can 3 tru 3 la so nguyen
tinh tong T bang 1 phan can 1 cong can 2 cong 1 phan can 2 cong can 3 cong ... cong den 1 phan can 99 cong can 100
Tim Gia Tri Nho Nhat Cua
a) A = x - 4 can x + 9
b) B = x - 3 can x - 10
c ) C = x - can x + 1
d ) D = x + can x + 2
