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gaber37jwjsjjs gaber37jwjsjjs
  • 12-05-2024
  • Mathematics
Answered

Xx

  1. (ÞLA 17 A) E¾¾¾ƒ(x) = €², g(x) =

(本满分 分)已知函数f(x)

2

1 – 1½-½≤ax² —

sin x

x

(1)₺ a = 0, ù³Ƒ: Vx > 0, f(x) >

x

=

g(x) h′(x) = 1 − ½³ax²

-

2

ах

COS X

(2) 若函数 h(x) = xg(x) 在x∈ (0, +∞) 上单调

递减, 求实数a的取值范围

(3) n Є N*, ìŒÐA:

e2

e

1-sin 1

+

+

+

2-sin 2

en

6n

n-sin n

n+1

Verified Answer :

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