Ex 1

1.B

2.A

3.D

4.C

5.A

Ex 2

1.A

2.B

3.C

4.D

5.A

what's the compound sentence ? EX

Awser:

Compound sentences are sentences made up of multiple sentences, usually we combine two sentences to create a compound sentence. Each sentence has the same structure as a single sentence (the sentence has a full owner - unit), and shows an idea that is closely related to the ideas of other sentences.

Metaphor is a rhetorical method that uses the name of this object / phenomenon by the name of another object / phenomenon that has similarities between the two objects in a certain way (such as properties, states, colors, ... ) in order to increase the visual and sexiness of the expression. Or you can understand simply that Metaphor is a measure to change the name of things / phenomena A with B, that you call the name A but hide B.

A type of complex sentence in which propositions are connected by equal relationships. This type of sentence can be identified by the following formal signs: 1) conjugated conjunctions [such as: and, but, song, then, longer, or (is), or (is), that, and fig ( again), (()) ... ()

Ex:) My eyes are looking down at my nose, my nose is looking down at my mouth, and my mouth is drooping.

∀ x ∈ R ⇒ - x ∈ R và f - x = e - x + e x 2 = f x  

Do đó f(x) là hàm số chẵn. Suy ra A sai.

Chứng minh tương tự g(x) là hàm số lẻ. Suy ra B sai.

Mặt khác, f ' (x) = g(x) Suy ra C sai.

Vậy chỉ có D đúng

Đáp án D

program tinh_ex;

var

       x, ex, gt: real;

       n, i: integer;

begin

       write('Nhap vao so x: '); readln(x);

       n := 10; (* so luong so hang *)

       ex := 1; gt := 1;

       for i := 1 to n do

       begin

              gt := gt * i; (* tinh giai thua i! *)

              ex := ex + power(x, i) / gt; (* tinh tong theo cong thuc *)

       end;

       writeln('Gia tri cua e^', x, ' la: ', ex);

       readln;

end.

program tinh_e;
var x: real;
  n: integer;
  s, t: real;
  i: integer;
begin
  write('Nhap x: '); readln(x);
  write('Nhap n: '); readln(n);
  s := 1; t := 1;
  for i := 1 to n do
    begin
      t := t * x / i;
      s := s + t;
    end;
  writeln('e = ', s);
end.

program Tinh_ex;

function TinhGiaiThua(n: Integer): Integer;

var i, giaiThua: Integer;

begin

giaiThua := 1;

for i := 1 to n do

giaiThua := giaiThua * i;

TinhGiaiThua := giaiThua;

end;

function TinhEx(x: Real; n: Integer): Real;

var i: Integer;

ex, phanTu: Real;

begin

ex := 1;

for i := 1 to n do

begin

phanTu := x / TinhGiaiThua(i);

ex := ex + phanTu; end;

TinhEx := ex;

end;

var x: Real;

n: Integer;

ketQua: Real;

begin

Write('Nhap gia tri cua x: ');

ReadLn(x);

Write('Nhap so luong phan tu n: ');

ReadLn(n);

ketQua := TinhEx(x, n);

WriteLn('Gia tri của ex la: ', ketQua:0:2);

end.

Đáp án B

ssjmxnx

\(y'=\left(e^x\right)'.cosx+e^x.\left(cosx\right)'=e^x\left(cosx-sinx\right)\)

=> Chọn A

và đi đến kết quả 

 có 10 giá trị thỏa mãn. Chọn B.