Question

Buna ! Cine ma poate ajuta la ex 4,5,6,17 (urgent )

Answer 1

4) f(0) = (1/2)⁰ = 1

f(1) = (1/2)¹ = 1/2

f(2) = (1/2)² = 1/4

f(3) = (1/2)³ = 1/8

f(4) = (1/2)⁴ = 1/16

f(0) + f(1) + f(2) + f(3) + f(4) = 1 + 1/2 + 1/4 + 1/8 + 1/16 =

(16 + 8 + 4 + 2 + 1) /16 = 31/16 = 1,9375

5) f(-1) = 5¹ = 5

f(0) = 5 la puterea -0 = 1

f(1) = 5 la puterea - 1 = 1/5

f(-1) + f(0) + 5f(1) = 5 + 1 + 1 = 7

6) f(1) = 2¹ + log in baza 3 din 1 = 2 + 0 = 2

f(3) = 2³ + log in baza 3 din 3 = 8 + 1 = 9

f(1) + f(3) = 2 + 9 = 11

17) delta = b² - 4ac = 64 + 12m

fmax = 5 -> fmax = -delta/ 4a

-> -64 - 12m / 4m = 5

-64 - 12 m = 20m

-64 = 32m

m = -2