Question

va rog, am. nevoie, !!!!!!nu direct!!! va rog ​

Answer 1

a) - 1

Răspuns:

a = 2 + 2/√2 - 2

a = 2 + 2/√2 - 2 × √2 + 2/√2 + 2

a = 2 + 2(√2 + 2) / (√2 - 2 ) × (√2 + 2 )

a = 2 + 2(√2 + 2) / 2 - 4

a = 2 + 2(√2 + 2) / - 2

a = 2 - (√2 + 2)

a = 2 - √2 - 2

a = -√2

b = 1 / 1 - √2 + 2

b = 1 / 1 + √2 + 2 × 1 + √2 / 1 + √2

b = 1(1 + √2) / (1 - √2) × ( 1 + √2 ) + 2

b = (1 + √2 / 1 - 2) + 2

b = (1 + √2 / - 1) + 2

b = - ( 1 + √2 ) + 2

b = - 1 - √2 + 2

b = 1 - √2

x = ( a - b ) ²⁰²¹

x = [ ( - √2 ) - ( 1 - √2 ) ] ²⁰²¹

x = ( - √2 - 1 + √2 ) ²⁰²¹

x = ( - 1 ) ²⁰²¹

x = - 1²⁰²¹

x = - 1 → ( a )