Question

te rog dau coroana a b c​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

= 2⁶*5⁶:2⁵*5⁵

= 2⁶:2⁵ *5⁶:5⁵

=2⁶⁻⁵*5⁶⁻⁵

= 2¹*5¹

=2*5

=10

-

b)

= 15²ˣ⁵:(3⁹*5⁸)

=  15¹⁰:  (3⁹*5⁸)

= 3¹⁰*5¹⁰:3⁹*5⁸

=3¹⁰:3⁹*5¹⁰:5⁸

=3¹⁰⁻⁹ *5¹⁰⁻⁸

= 3¹*5²

=3*25

= 75

-

c)

=25¹⁰*4¹⁰ : 2¹⁹*5¹⁹

=(5²)¹⁰*(2²)¹⁰ : 2¹⁹*5¹⁹

= 5²ˣ¹⁰  * 2²ˣ¹⁰  : 2¹⁹*5¹⁹

= 5²⁰*2²⁰:2¹⁹*5¹⁹

= 5²⁰:5¹⁹  *2²⁰:2¹⁹

=5²⁰⁻¹⁹* 2²⁰⁻¹⁹

= 5¹*2¹

= 5*2

= 10