Các câu hỏi tương tự
Thuc hien phep tinh:
a.3/7.11/15+3/7:15/14+2/7
b.(-7/15).5/8.15/-7(-32)
c.[(1/9:8/27):-1/3]:81/128
d.-66(1/2-1/3+1/11)+124(-37)+63(-124)
Tính tổng S=1/2+3/4+7/8+15/16+31/32+63/64+127/128-6
thuc hien phep tinh (Tinh nhanh neu co the)
(-5/12+7/4-3/8)-|4 va 1/2 -7 va 1/2|-( 1/4-5/2)
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 .
thuc hien phep tinh :M=1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+...+1/16(1+2+3+...+16)
Thuc hien phep tinh :
\(\frac{28^{15}.3^{17}}{84^{16}}\)
Thuc hien phep tinh
a,\(\frac{-9}{22}+\frac{5}{31}+\frac{-13}{22}+0.5+2\frac{26}{31}\)
b, -28 . \(\left(\frac{3}{7}-\frac{1}{4}\right)^2\)
c,\(\frac{7}{23}.\left[\left(\frac{-8}{6}\right)-\frac{45}{18}\right]\)
Giúp mik với mik đang cần gấp .Ai làm xong trc 9.00 hôm nay mink tick cho
Thuc hien phep tinh :
\(\frac{15^3+5.15^2-5^3}{18^3+6.18^2-6^3}\)
Thuc hien phep tinh(nhanh neu co the)
1024:2^4+140:(38+2^5)-49^22:7^21