Chuyªn ®Ò :ph¬ng tr×nh lîng gi¸c
16/cos2x-2cos3x+sinx=0 17/ tanx–sin2x-cos2x+2(2cosx-)=0 . 18/sin2x=1+cosx+cos2x 19/1+cot2x= 20/ 2tanx+cot2x=2sin2x+ 21/cosx(cos4x+2)+ cos2x-cos3x=0 . 22/ 1+tanx=sinx+cosx 23/ (1-tanx)(1+sin2x)=1+tanx . 24/ 2= 25/ 2tanx+cotx= 26/ cotx-tanx=cosx+sinx 27/ 9sinx+6cosx-3sin2x+cos2x=8 . DANG 8 : Phương trình LG phải thực hiện công thúc ... ................
................
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.