T
thinhthpthtk


Cos22x+2(sinx+cosx)3−3sin2x
lam toi buoc gan cuoi thi em ko hieu tai sao:
cos2x+sin2x+1+2sinxcosx−2sinx−2cosx
lai thành(sinx+cox-1)^2
Toan11 nang cao ak
lam toi buoc gan cuoi thi em ko hieu tai sao:
cos2x+sin2x+1+2sinxcosx−2sinx−2cosx
lai thành(sinx+cox-1)^2
Toan11 nang cao ak
Last edited by a moderator: