C=(151515/161616+17^9/17^10)-(1500/1600-1616/1717)
minh can gap !@#!#!!@!@
tính C=(151515/161616+17^9/17^10)-(1500/1600-1616/1717)
\(\left(\frac{151515}{161616}+\frac{17^9}{17^{10}}\right)-\left(\frac{1500}{1600}-\frac{1616}{1717}\right)\)
\(=\left(\frac{15.10101}{16.10101}+\frac{1}{17}\right)-\left(\frac{15.100}{16.100}-\frac{16.101}{17.101}\right)\)
\(=\frac{15}{16}+\frac{1}{17}-\frac{15}{16}+\frac{16}{17}=\frac{1}{17}+\frac{16}{17}=\frac{17}{17}=1\)
\(\left(\frac{151515}{161616}+\frac{17^9}{17^{10}}\right)-\left(\frac{1500}{1600}-\frac{1616}{1717}\right)\)
\(\left(\frac{151515}{161616}+\frac{17^9}{17^{10}}\right)-\left(\frac{1500}{1600}-\frac{1616}{1717}\right)\)
\(=\left(\frac{15}{16}+\frac{1}{17}\right)-\left(\frac{15}{16}-\frac{16}{17}\right)\)
\(=\frac{15}{16}+\frac{1}{17}-\frac{15}{16}+\frac{16}{17}\)
\(=\left(\frac{15}{16}-\frac{15}{16}\right)+\left(\frac{1}{17}+\frac{16}{17}\right)\)
\(=\frac{15-15}{16}+\frac{1+16}{17}\)
\(=0+\frac{17}{17}\)
\(=0+1\)
\(=1\)
Tính
C=(151515/161616+17^9/17^10)-(1500/1600-1616/1717)
D=(1/2^2-1)(1/3^2-1)(1/4^2-1)....(1/100^2-1)
mk cũng đang làm có gì bạn nhận được câu trả lời nhắn tin cho mk vs
C=(15/16+1/17)-(15/16-176/187)
C=15/16+1/17-15/16+176/187
C=[15/16+(-15/16)]-[1/17+176/187]
ban lam tiep nhe
C = (151515/161616 + 17^9/17^10) - (1500/1600 - 1616/1717)
C = (15.101010/16.101010 + 17^9/17^9.17) - (15.100/16.100 - 16.1010/17.1010)
C = (15/16 + 1/17) - (15/16 - 16/17)
C = 15/16 + 1/17 + -15/16 + 16/17
C = (15/16 + -15/16) + (1/17 + 16/17)
C = 0 + 1
C = 1
tinh nhanh
\(\left(\frac{151515}{161616}+\frac{17^5}{17^{10}}\right)+\left(\frac{1616}{1717}-\frac{1500}{1600}\right)\)
=\(\left(\frac{15}{16}+\frac{1}{17^5}\right)+\left(\frac{16}{17}-\frac{15}{16}\right)\)
=\(\frac{1}{17^5}+\frac{16}{17}=\frac{1+16.17^4}{17^5}\)
đáp số là số thập phân vô hạn không tuần hoàn
help me!
B1: Tính A=(1/7+1/23-1/1009) : (1/7+1/23-1/1009+1/7.1/23.1/9) +1:(30.1009-160)
B=(151515/161616+17^9/17^10)-(1500/1600+1616/1717)
Các bạn giúp mình với
Tinh: B=\(\left(\frac{151515}{161616}+\frac{17^9}{17^{10}}\right)-\left(\frac{1500}{1600}-\frac{176}{187}\right)\)
MINH DANG CAN GAP! AI NHANH VA DUNG THI MINH TICK CHO!
\(B=\left(\frac{15}{16}+\frac{1}{17}\right)-\left(\frac{15}{16}-\frac{16.11}{17.11}\right)\)
\(B=\frac{15}{16}+\frac{1}{17}-\frac{15}{16}+\frac{16}{17}\)
\(B=\frac{1}{17}+\frac{16}{17}=\frac{17}{17}=1\)
B= (151515/161616+17^9/17^10)-(1500/1600-176/187)
B=\(\left(\dfrac{151515}{161616}+\dfrac{17^9}{17^{10}}\right)-\left(\dfrac{1500}{1600}-\dfrac{176}{187}\right)\). tinh nhanh
\(B=\left(\frac{151515}{161616}+\frac{17^9}{17^{10}}\right)-\left(\frac{1500}{1600}-\frac{176}{187}\right)\)
\(B=\left(\frac{15}{16}+\frac{1}{17}\right)-\left(\frac{15}{16}-\frac{16}{17}\right)\)
\(B=\frac{15}{16}+\frac{1}{17}-\frac{15}{16}+\frac{16}{17}\)
\(B=\left(\frac{15}{16}-\frac{15}{16}\right)+\left(\frac{1}{17}+\frac{16}{17}\right)\)
\(B=0+1=1\)
Vậy: B=1
(\frac{151515}{161616}+\frac{1}{17})-(\frac{1500}{1600}-\frac{16}{17})= ?????
\(\dfrac{151515}{161616}+\dfrac{1}{17}-\dfrac{1500}{1600}-\dfrac{16}{17}\)
\(=\dfrac{10101.15}{10101.16}+\dfrac{1}{17}-\dfrac{15.100}{16.100}-\dfrac{16}{17}\)
\(=\dfrac{15}{16}+\dfrac{1}{17}-\dfrac{15}{16}-\dfrac{16}{17}=\dfrac{-15}{17}\)