\(\left(1+\frac{2}{3}-\frac{1}{4}\right)\left(0.8-\frac{3}{4}\right)^2\)
\(=\left(\frac{12}{12}+\frac{8}{12}-\frac{3}{12}\right)\left(\frac{16}{20}-\frac{15}{20}\right)^2\)
\(=\left(\frac{12+8-3}{12}\right)\left(\frac{1}{20}\right)^2\)
\(=\frac{17}{12}\cdot\frac{1}{400}\)
\(=\frac{17}{4800}\)
tren mat phang toa do oxy cho 2 diem p (2;7) va q (7;2) khi do
cau tra loi 1 p khong trung q
cau tra loi 2 pva q cung nam tren truc qx
cau tra loi 3 p va q nam trong truc ox
cau tra loi 4 p trung q
minh dang thi moi nguoi giup minh tra loi cau nay nhe
Qua 5 diem ko co 3 diem nao thang hang hoi : a) Ve dc bao nhiu duong thang phan biet di qua 2 trong 5 diem. b) Ve dc bao nhiu doan thang phan biet nhan 2 trong 5 diem do la cac diem dau mut . c) Ve dc bao nhiu tam giac phan biet nhan 3 trong 5 diem lam dinh . Ai tra loi nhanh va dung m cho 1 like . Anh em tra loi dc cau nao thi tra loi gium minh
Qua 5 diem ko co 3 diem nao thang hang hoi : a) Ve dc bao nhiu duong thang phan biet di qua 2 trong 5 diem. b) Ve dc bao nhiu doan thang phan biet nhan 2 trong 5 diem do la cac diem dau mut . c) Ve dc bao nhiu tam giac phan biet nhan 3 trong 5 diem lam dinh . Ai tra loi nhanh va dung m cho 1 like . Anh em tra loi dc cau nao thi tra loi gium minh
Cac ban giup minh Cau 3 trang 65 Sach Bai Tap toan 7 tap 1 voi , nha . Minh se L.I.K.E ngay cho nguoi tra loi dau tien
Tinh P giup minh voi : P = 1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+...+1/16(1+2+3+...+16) . Ban nao lam duoc thi giup minh nha . Minh se tick ung ho .
Tra loi va ghi cach giai dum minh nha.
(1-2/2*3)(1-2/3*4)(1-2/4*5)...(1-2/99*100)
tinh gia tri bieu thuc dai so x2 y3 +xytai x =1 va y =\(\frac{1}{2}\)
ai tra loi nhanh va dung nhat thi toi se tick cho toi co den 10nick lan
Chúc mừng bạn dinh nam manh duc đã dc tik dot 3
Đợt 4:
1+0x1x0x010x0x1x0=? =?
mik se chon 1 ban tra loi dung bat ki de tik
ket qua va đợt 5 co sau 3 phut nua
