\(\left(\frac{3}{7}\right)^{21}:\left(\frac{9}{49}\right)^6=\left(\frac{3}{7}\right)^{21}:\left(\left(\frac{3}{7}\right)^2\right)^6\)
\(=\left(\frac{3}{7}\right)^{21}:\left(\frac{3}{7}\right)^{12}\)
\(=\left(\frac{3}{7}\right)^{21-12}\)
\(=\left(\frac{3}{7}\right)^9\)
(3/7)^21:(9/49)/6
( 3/7 )^21 : ( 9/49 )^6
Tính: (3/7)^21:(9/49)^6
Tính (3/7)^21 : (9/49)^6
Tính:
a) -5/7(14/5 - 7/10) : |-2/3| - 3/4(8/9 + 16/3) + 10/3(1/3 + 1/5)
b) 17/-26(1/6 - 5/3) : 17/13 - 20/3(2/5 - 1/4) + 2/3(6/5 - 9/2)
c) -8/9(9/8 - 3/2) + 5/4 : (5/2 - 15/4) - 3/4(10/9 - 8/3) : (-1/3)
d) 21/10 : (12/5 - 9/10) . (-4/7) - 3/2(1/6 - 7/12) + 1/5(3/2 - 1/4)
tinh : (3/7)21;(9/49)6
Tính:
a.(3/7)^21 : (9/49)^6
b. 3+(6/7)^0+(1/2)^2: 2
Tính (3/7)21:(9/49)6
(3/7)21.(9/49)6
tính
(3/7)21:(9/49)6
