Question

day coroana la cine raspunde​

Answer 1

Răspuns:

se inmultesc puterile

a) $5^{3x0} =5^{0}$=1

b) $2^{3x5} =2^{15}$

c) $1^{30x50}= 1^{150} = 1$

d) $2^{5x3} x2^{3x5} : 2^{3x10}$= $2^{15} x 2^{15} : 2^{30}$= $2^{30} : 2^{30} =2^{30-30} =2^{0} =1$

e)$7^{30x0} x49^{5x3} : 7^{6x5}$= $7^{0} x49^{15} : 7^{30}$= 1x$7^{2x15} :7^{30} = 7^{30} : 7^{30}= 1$

f) $3^{4x5} : 9^{3x2}$= $3^{20} : 9^{6} =3^{20} : 3^{2x6} = 3^{20} : 3^{12}= 3^{20-12} =3^{8}$

g) $21^{3x5} : 21^{2x7} = 21^{15} : 21^{14}= 21^{15-14}= 21^{1}=21$

h) la h afisezi tu raspunsul daca ai inteles