0
01699895843


....(2sinx-1)(2sin2x+1)=3_4cos^2x
....2cos^2(pi/2*cos^2x)=1+cos(pisin2x)
....sin^3x+cos^3x=2(sin^5x+cos^5x)
chú ý tiêu đề
....2cos^2(pi/2*cos^2x)=1+cos(pisin2x)
....sin^3x+cos^3x=2(sin^5x+cos^5x)
chú ý tiêu đề
Last edited by a moderator: