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=
=
= ∛8² + 2.∛8 + 4
= ∛64 + 2. 2 + 4
= 4 + 4 + 4
= 12
11) =
=
=
=
= 1 + 1 + 1 .....
= 1n
= n
limit t mendekati 0
(1 - (cos at)^(1/5)) / t^2
karena bentuknya tak terdefinisi, turunkan
= limit t mendekati 0
(1/5)(a)(sin at)(cos at)^(-4/5)/2t
karena bentuknya masih tak terdefinisi, turunkan
= limit t mendekati 0
(1/5)(a).(a.cosat.(cosat)^(-4/5)+sinat.(-4/5)a(cos(at)^(-9/5))/2
masukan nilai t
= (1/5)(a).(a.cos0.(cos0)^(-4/5)+sin0.(-4/5)a(cos(0)^(-9/5))/2
= (1/5)(a).(a.1.1 + 0.-4/5.a.1)/2
= ((1/5)(a).a)/2
= a²/10
==========
limit x mendekati 1
(x - 1)/(x^(1/n) - 1)
turunkan
= limit x mendekati 1
(1)/((1/n)x^(1/n - 1))
masukan nilai x
= 1/(1/n).(1^(1/n - 1))
untuk sembarang nilai n real, maka 1^(1/n - 1) = 1
sehingga,
= 1/(1/n)
= n
=============
A = 1
B = a
C = b
P = 1
Q = b
R = a
(B - Q)/2√A = 5/2
(a - b)/2√1 = 5/2
(a - b)/2 = 5/2
a - b = 5
F(0) = -1
√(0² + a(0) + b) - √(0² + b(0) + a) = -1
√b - √a = -1
cari bilangan kuadrat yang selisihnya 5
4 - 1 = 3
9 - 1 = 8
9 - 4 = 5
a = 9 dan b = 4
a + b = 9 + 4
= 13