khaliqtea
Jika hasilnya = 0, maka penyebut dikalikan sekawan
0 votes Thanks 0
Ghinashoda
Limit menuju berapanya ngak usah ditulis ya 1) Sin 4x/X^2tan2x - 2tan2x/x^2tan2x = 2/x^2 - 2/x^2 = 0 2) 2 Cos 1/2(x + ) sin1/2(x - )/(x- ) = Cos 1/2(x + ) = Cos 1/2(2) = Cos = - 1 3) -2sin1/2(x+a)sin1/2(x-a) per (x - a) = - sin 1/2(x + a) = -sin1/2(2a) = - Sin a
1) Sin 4x/X^2tan2x - 2tan2x/x^2tan2x = 2/x^2 - 2/x^2 = 0
2) 2 Cos 1/2(x + ) sin1/2(x - )/(x- )
= Cos 1/2(x + )
= Cos 1/2(2)
= Cos
= - 1
3) -2sin1/2(x+a)sin1/2(x-a) per (x - a)
= - sin 1/2(x + a)
= -sin1/2(2a)
= - Sin a