a: Xét ΔBAG và ΔBCG có

BA=BC

\(\widehat{ABG}=\widehat{CBG}\)

BG chung

Do đó: ΔBAG=ΔBCG

=>GA=GC

=>ΔGAC cân tại G 

b: Ta có: BA=BC

=>B nằm trên đường trung trực của AC(1)

Ta có: GA=GC

=>G nằm trên đường trung trực của AC(2)

Từ (1),(2) suy ra BG là đường trung trực của AC

4356 CHỮ P

\(x+\dfrac{2}{4}=\dfrac{3}{6}\\ x+\dfrac{1}{2}=\dfrac{1}{2}\\ x=\dfrac{1}{2}-\dfrac{1}{2}\\ x=0\)

\(x+\)\(2/4\)\(=\)\(\dfrac{3}{6}\)

\(_x\)\(\)         \(=\)\(3/6\)\(-\)\(\dfrac{2}{4}\)

x          =0

Giúp mình với mình xin đó🙏🙏🙏🙏

1 is => are

2 do => does

3 our => their

4 is => are

5 any => some

6 What => who

7 what => how

8 England => English

9 have => has

10 next => next to

11 taking => take

a: \(Q=\left(x-y\right)^2-\left(x-y\right)\left(x+y\right)+\left(x-2y\right)^2\)

\(=\left(x-y\right)\left(x-y-x-y\right)+\left(x-2y\right)^2\)

\(=-2y\left(x-y\right)+x^2-4xy+4y^2\)

\(=-2xy+2y^2+x^2-4xy+4y^2\)

\(=x^2-6xy+6y^2\)

b: \(\left(3x-1\right)^2-\left(x+7\right)^2-\left(2x-5\right)\left(2x+5\right)\)

\(=9x^2-6x+1-x^2-14x-49-\left(4x^2-25\right)\)

\(=8x^2-20x-48-4x^2+25=4x^2-20x-23\)

Yêu cầu của đề bài là gì vậy em?

Sửa đề: 12x37x4+8x41x6+3x22x16

=\(48\cdot37+48\cdot41+48\cdot22\)

\(=48\left(37+41+22\right)=48\cdot100=4800\)

   12 x 37 x 4 + 8 x 41 x 6 + 3 x 22 x 16

= (12 x 4) x 37 + (8 x 6) x 41 + (3 x 16) x 22

= 48 x 37 + 48 x 41 + 48 x 22

= 48 x (37 + 41 + 22)

= 48 x (78 + 22)

= 48 x 100

= 4800

Độ dài cạnh huyền là:

\(\sqrt{3^2+7^2}=\sqrt{9+49}=\sqrt{58}\left(cm\right)\)

Bình phương cạnh huyền là:

 3² + 7² =  58(cm²)

Cạnh huyền là:  \(\sqrt{58}\) m

When I was fifteen, I experienced an embarrassing moment that still makes me cringe. During a school presentation, I was so nervous that I accidentally mixed up my notes and began speaking about a completely unrelated topic. My classmates and teacher watched in confusion as I fumbled through my speech, desperately trying to get back on track. The more I struggled, the more flustered I became, and I could feel my face turning red. After the presentation, I felt mortified, especially because a few friends teased me about it. Despite the initial embarrassment, I eventually learned to laugh at myself and see it as a valuable lesson in handling public speaking under pressure.

Dãy số này không theo quy luật, có thể em chép nhầm đề em nhé!

Bạn xem lại đề bài ạ!!!!