Question

VA ROG REPEDE DAU COROANA SI 5 STELE​

Answer 1

V18 = 3V2

V147 =7V3

x =(8/3V2 + 6/V2) * V2/13 amplifici pe 6/V2 cu 3

x = (8/3V2 + 18/3V2) * V2/13

x= 26/3V2 * V2/13

x = 26/(3*13)

x = 2/3

y = (5/7V3 -1/V3) : V3/14 amplifici pe 1/V3 cu 7

y = (5/7V3 - 7/7V3) * 14/V3

y = -2/7V3 * 14/V3

y = -28/(7*3)

y = -4/3

b) N = |-4/3 - 2/3| = |-6/3 | = | -2| = 2 este natural

Answer 2

Salut! :)

~ V = radical ~

a) x = ( 8/V18 + 6/V2 ) × V2/13

x = ( 8/3V2 + 6/V2 ) × V2/13

x = ( 8/3V2 × V2/13 ) + ( 6/V2 × V2/13 )

x = 8/39 + ³ ) 6/13

x = 8/39 + 18/39

x = 26/39 ( ¹³ = 2/3

b) y = ( 5/V147 - 1/V3 ) : V3/14

y = ( 5/7V3 - 1/V3 ) × 14/V3

y = ( 5/7V3 × 14/V3 ) - ( 1/V3 × 14/V3 )

y = 70/21 ( ⁷ - 14/3

y = 10/3 - 14/3 = - 4/3

N = | y - x | = | - 4/3 - 2/3 | = | - 6/3 | = | - 2 | = 2 aparține lui N => N este natural