A și b plssss (coroana )

A Și B Plssss Coroana class=

Răspuns :

[(1/2)⁵]¹⁰-[(-1/2)¹⁰]⁵+(-1/4)⁵⁰-(-1/2)¹⁰⁰=
(1/2)⁵ˣ¹⁰-(-1/2)¹⁰ˣ⁵+[(-1/2)²]⁵⁰-(-1/2)¹⁰⁰=
(1/2)⁵⁰-(1/2)⁵⁰+[(-1/2)²]⁵⁰-(1/2)¹⁰⁰=
(1/2)⁵⁰-(1/2)⁵⁰+(1/2)¹⁰⁰-(1/2)¹⁰⁰=0

[(-2/3)⁴]⁵÷(2/3)¹⁸=
(-2/3)⁴ˣ⁵÷(2/3)¹⁸=
(2/3)²⁰÷(2/3)¹⁸=
(2/3)²⁰⁻¹⁸=(2/3)²=4/9