Archive
13th of April 2017
Mathematics
Q:

tại sao 1/sin18-1/sin54=2

công thức áp dụng là gì

Nhung Nguyen - Junior - Class I

Thursday, April 13, 2017 at 17:44:PM

A:

Hi Nhung,

Your query is not clear. Please post it clearly.

Thursday, April 13, 2017 at 17:55:PM