y = 3.sin²(4x) = 3(sin(4x))²
subtitusi t = 4x , u = sin(t)
y = 3u²
dy = 6u.du
dy = 6(sin(t)) . d(sin(t))
dy = 6sin(t).cos(t).dt
dy = 3(2.sin(t).cos(t)).dt
dy = 3.sin(2t).dt
dy = 3.sin(2.4x).d(4x)
dy = 12.sin(8x).dx
dy/dx = 12.sin(8x)
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y = 3.sin²(4x) = 3(sin(4x))²
subtitusi t = 4x , u = sin(t)
y = 3u²
dy = 6u.du
dy = 6(sin(t)) . d(sin(t))
dy = 6sin(t).cos(t).dt
dy = 3(2.sin(t).cos(t)).dt
dy = 3.sin(2t).dt
dy = 3.sin(2.4x).d(4x)
dy = 12.sin(8x).dx
dy/dx = 12.sin(8x)
semoga bisa membantu . . .