mk tang anh cho cac bn ne va ca marry thao nua
mk tang anh cho cac bn ne!!!!!
Tang anh cho cac bn ne!!!
50+50+600
=????
ai la bn o nick conan thi xoa kb het di nha
nick do mk bi cuop rui
nen cac bn dung nhan nua
hay xoa kb di
nha va kb voi nick nay ne!!!!!
Theo đề ta có:
50 + 50 + 600
= (50 + 50) + 600
= 100 + 600
= 700
Bằng 700 đó ! Sao lop 5 roi ma cung ko tinh noi cau nay vay ban
Cac bn kb vs mk nha,that ra mk co nick trong olm roi,con co rat nhieu bn nua,nhung nick cua mk bi 1 dua an cap va xoa het bn be cua mk,mk mong cac bn truoc co the kb lai vs mk,nhung nguoi ham mo Son Tung,Khoi My va bo phim co dau 8 tuoi.Mk noi the chac cac bn co the nho mk,mk rat mong cac bn giup do
co ai co anh dep ko
mk bit noi quy roi nhung xin cac bn dung noi nua
bn lên google bn ghi ảnh đẹp anime nha !
Minh len google minh da tai den hon 1000 anh anime cuc dep du cac the loai luon
Tim y :
a, ( 2y + 1 ) 3 = 125
b, ( y - 5 ) 4 = ( y - 5 ) 6
Cac ban lop 7 giup mk nhe ! Ca cac anh chi tren lop 7 nua ! Ai nhanh mk tick cho nha !!!
\(a,\left(2y+1\right)^3=125\)
\(\Leftrightarrow2y+1=\sqrt[3]{125}=5\)
\(\Leftrightarrow2y=5-1=4\)
\(\Rightarrow y=2\)
\(b,\left(y-5\right)^4=\left(y-5\right)^6\)
\(\Leftrightarrow\left(y-5\right)^4-\left(y-5\right)^6=0\)
\(\Leftrightarrow\left(y-5\right)^4\left[1-\left(y-5\right)^2\right]=0\)
\(\Leftrightarrow\left(y-5\right)^4\left(1-y+5\right)\left(1+y-5\right)=0\)
\(\Leftrightarrow\left(y-5\right)^4\left(6-y\right)\left(y-4\right)=0\)
Vì \(\left(y-5\right)^4>0\forall y\)
\(\Rightarrow\left[{}\begin{matrix}6-y=0\\y-4=0\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}y=6\\y=4\end{matrix}\right.\)
a) \(\left(2y+1\right)^3=125\)
\(\Leftrightarrow\left\{{}\begin{matrix}\left(2y+1\right)^3=5^3\\\left(2y+1\right)^3=\left(-5\right)^3\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}2y+1=5\\2y+1=-5\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}2y=4\\2y=-6\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}y=2\\y=-3\end{matrix}\right.\)
Vậy ...................
Ai la ARMY thi kb mk nha. Con ai ranh thi ib vs mk. Ai k co viec thi tang mk hinh idol hoac anh cac bn mk se nhan xet. Mk cuc ranh
cho duong tron (O) co duong kinh AB =8cm tren tia OB lay cac diem C va D sao cho OC =5cm ,OD = 20/3 cm .Ke ca tiep tuyen CM va DN cua duong tron (O) sao cho cac tiep diem M va N cung thuoc mot nua mat phang co bo la duong thang AB .
1) Chung minh rang tam giac MOC dong dang voi tam giac NDO
2) Duong thang CM cat doan thang DN o E tinh do dai doan thang NE
sau buoi bieu dien van nghe, nha truong tang qua cho cac tiet muc, lan dau tang tiet muc dong ca 5/6 so keo va 1/6 goi, lan thu 2 tang tiet muc top ca 6/7 so keo con lai va 1/7 goi, lan thu 3 tang tiet muc don ca 3/4 so keo con lai va 1/4 goi thi vua het. tinh so keo truong do da tang va so keo tang rieng cho tung tiet muc
ai giup mik voi, nhanh len nha, mik tick cho!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!