Question

4 si 5 va rog !!! Cat mai repede !! Ofer coroana cu conditia ca raspunsul sa aiba explicatie cu tot cu calcule!!!

Answer 1

[tex]4)a)\\ 1^3=1,2^3=8,3^3=27,4^3=64\\ 1+8+27+64=100\\ b)\\ 5^3=125,0^3=0,7^3=343\\ 125+0+343=468\\ c)\\1^3+9^3+11^3=1+729+1331=2061\\ d)\\1^4+2^4+3^4+4^4=1+16+81+256=354\\ 5)\\a)\\(F)\\6^2+7^2=36+49=85\\(6+7)^2=13^2=169\\ b)\\(F)\\11^3-10^3=1331-1000=331\\ (11-10)^3=1^3=1\\ c)\\(A)\\3^2+4^2=9+16=25=5^2\\d)\\(F)\\4^2+5^2=16+25=41\\6^2=36\\ e)\\(A)\\3^3+4^3+5^3=27+64+125=216=6^3\\ f)\\(A)\\ 8^2-7^2=64-49=15\\ (8-7)(8+7)=1\cdot 15=15\\ 15=15[/tex]