\(3+3.9-36=3+27-36=30-36=30+\left(-36\right)=-6\)
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\(3+3.9-36=3+27-36=30-36=30+\left(-36\right)=-6\)
CTR:36/1*3*5+36/3*5*7+36/5*7*9+...+36/25*27*29<3
Hoàn thành các phép tính sau :
7/9+5/12-3/4=7×4/36+5×.../36-3×.../36
=28+..._.../36
=16/36=.../...
chứng minh B = 36 / 1 x 3 x 5 + 36 / 3 x 5 x7 + 36 / 5 x 7 x 9 + .... + 36 / 25 x 27 x29 < 3
c/m : B=36/1.3.5+36/3.5.7+36/5.7.9+...+36/25.27.29 < 3
Chứng minh B=36/1.3.5+36/3.5.7+36/5.7.9+...+36/25.27.29<3
CMR 36 p 1*3*5+36 p 3*5*7+36 p 5*7*9+....+36 p 25*27*29<3
Chứng minh rằng: B=36/1.3.5+36/3.5.7+36/5.7.9+...+36/25.27.29<3.
chứng minh
36/1.2.5+36/3.5.7+....+36/25.27.29<3
chứng tỏ:\(\frac{36}{1\times3\times5}+\frac{36}{3\times5\times7}+.....+\frac{36}{25\times27\times29}\)lớn hơn 3