This is the problem __________________ (discuss) at the next

This is the problem __________________ (discuss) at the next meeting.
在三角形ABC中a/cosA=b/cosB=c/cosC,用正弦定理证明三角形ABC是等边三角形

yinger009 1年前已收到2个回答举报

共回答了12个问题采纳率：83.3% 举报

discussed
a/sinA=b/sinB=c/sinC
a/cosA=b/cosB=c/cosC
tanA=tanB=tanC
tanx为在（0,π/2)上的增函数且大于零
（π/2,π)上的增函数且小于零
ABC三角不能中至少有两个角是锐角,显然A=B=C
故为等边三角形

1年前

jiji1991 幼苗

共回答了1个问题举报

discussing

1年前

可能相似的问题

i found that the problem __________(not be) so difficult for

1年前4个回答
The problem __________ (refer) to at the meeting this mornin

1年前1个回答
The problem __________, they went home. being solved B. has

1年前6个回答
She has trouble __________ (find)a solution to the problem.

1年前2个回答
So difficult __________ it to work out the problem th

1年前1个回答
I don't konw __________ with the problem

1年前3个回答
任务型阅读：There should be __________ to solve the problem.

1年前1个回答
The math problem was _________ difficult __________ none of

1年前1个回答
---Can __________ work out the problem?

1年前1个回答
(英语)关于被动主动的问题The problem is difficult __________.A.to solveB

1年前3个回答
__________ he could understand the problem,I explained it to

1年前2个回答
This maths problem is so difficult that only __________ stud

1年前2个回答
几个英语问题1、-Dad,I work out the math problem at last.-__________

1年前7个回答
Philips openly admitted __________ an alcohol (酒精) problem a

1年前1个回答
The problem is so difficult that she could __________ work i

1年前1个回答
I have __________(困难) working out the math problem.

1年前1个回答
This is the best way I can think of __________ the problem.A

1年前1个回答
__________ no need for us to discuss the problem again. It h

1年前1个回答
__________ and the problem could be settled

1年前2个回答
【初中英语单选题】The maths problem is __________.I can work it out _

1年前1个回答

你能帮帮他们吗

精彩回答