khổ cuối của bài đoàn thuyền đánh cá

tác giả ,tác phẩm

biện pháp tu từ và tác dụng của nó (lúc mà ghi biện pháp tu từ các bạn ghi luôn cái từ biểu thị của biện pháp tu từ luôn nha )

A=\(\cos^21+\cos^22+\cos^23+.......+\cos^287+\cos^288+\cos^289-\frac{1}{2}\)

B=\(\sin^21+\sin^22+\sin^23+....+\sin^287+\sin^288+\sin^289-\frac{1}{2}\)

C=\(\tan^21\times\tan^22\times\tan^23\times.....\times\tan^287\times\tan^288+\tan^289\)

D=\(\left(\tan^21\div\cot^289\right)+\left(\tan^22\div\cot^288\right)+......+\left(\tan^244\div\cot^246\right)+\tan^245\)

các bạn giúp mình với

tất cả các số đều có độ hết nha trừ cái 1/2 là không có dộ

\(\frac{1}{1+\sqrt{2}}+\frac{1}{\sqrt{2}+\sqrt{3}}+....+\frac{1}{\sqrt{99}+\sqrt{100}}\)

giup minh voi

cam on nhieu

cac ban giai chi tiet giup minh nha

tìm giá trị nhỏ nhất

A=\(\sqrt{x-4}-2\)

B=x-\(4\sqrt{x}\)+10

C=x-\(\sqrt{x}\)

D=\(\sqrt{x^2-2x+4}+1\)

giúp mình giải với các bạn giải chi tiết giúp mình nha

thanks MÃI YÊU !!!MÃI CẢM ƠN @@

chứng minh

\(\sqrt{\sqrt{ }}\)2+1 -\(\sqrt{\sqrt{ }}\)2-1=\(\sqrt{ }\)2(\(\sqrt{ }\)2-1)

giúp mình với

ở cái chỗ sau dấu bằng là có một cái căn lớn bao hàm 2 nhân với căn 2 -1 nha đừng nhầm lẫn nha

thanks

i wish you ........ more slowly

A drive B drove C drives Ddriven

i wish i ...............in a big city

A didn't live B doesn't live Cdon not live Ddid live

i wish tomorrow..................a workday

A wasn't B are C weren't D is

i wish i ................... to him so impolitely yesterday

A hadn't speak B hadn't spoke C hadn't spoken Dhad go

i wish the baby .................. crying

A stop B stopped C stops Dstopping

i wish i ........... the lesson

A have understand B had understand C had understood D understand

i wish my friend................... his exam

A passed B had passed C have passed Dhas passed

i wish i ............... speak english

A should B could C can Dwill

my sister wishes she ....... to play the piano when she was young

A learnt B would learn C had learnt Dwould have learnt

i wish someone ......... to help me with that word tomorrow

A offer B offered C would offer D had affered

i wish i ...............there for my hoilyday year .I didn't enjoy it

A didn't go B hadn't gone C wouldn't go Dwould rather go

he wishes he ........... the examination last month

A didn't fail B hadn't failed Cweren 't failing D couldn 't have failed

i wish he ........ to me more often

A writes B wrote C have written ***** writing

i wish he ......... more time now to help you with your lesson

A have B had C would have D had had

i wish i ......... psychology when i was a colege student

A had studied B would study C studied Dstudy

if only i ............ play the guitar as well as you

A would B should C could D might

i wish i ............... my letter of application earlier

A wrote B had written C could write D should write