K
karakoos23
Guest
Hej
Har någon kan bevisa det ∫ cos x dx = sin x C?
Tack på förhand
Har någon kan bevisa det ∫ cos x dx = sin x C?
Tack på förhand
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B
bunalmis
Guest
2Cos (x) = e ^ JX e ^-JX
2jSin (x) = e ^ JX-e ^-JX
∫ cos x dx = 1 / 2 ∫ e ^ JX DX 1 / 2 ∫ e ^-JX dx = = 1/2j e ^ JX - 1/2j e ^-JX C = Sin (x) CTill efter 1 timmar 52 minuter:∫ cos x dx = sin (x) C
d / dx (Sin (x) C) =?
d / dx Sin (x) = lim dx -> 0 (1/dx) (Sin (x dx) - Sin (x)) = lim dx -> 0 (Sin (x) cos (dx) Sin (dx) cos (x) - Sin (x)) / dx
Lim dx -> 0 Sin (x) cos (dx) / dx - Sin (x) / dx = 0
Lim dx -> 0 Sin (dx) cos (x) / dx = cos (x)
d / dx Sin (x) = cos (x)
2jSin (x) = e ^ JX-e ^-JX
∫ cos x dx = 1 / 2 ∫ e ^ JX DX 1 / 2 ∫ e ^-JX dx = = 1/2j e ^ JX - 1/2j e ^-JX C = Sin (x) CTill efter 1 timmar 52 minuter:∫ cos x dx = sin (x) C
d / dx (Sin (x) C) =?
d / dx Sin (x) = lim dx -> 0 (1/dx) (Sin (x dx) - Sin (x)) = lim dx -> 0 (Sin (x) cos (dx) Sin (dx) cos (x) - Sin (x)) / dx
Lim dx -> 0 Sin (x) cos (dx) / dx - Sin (x) / dx = 0
Lim dx -> 0 Sin (dx) cos (x) / dx = cos (x)
d / dx Sin (x) = cos (x)
K
karakoos23
Guest
Hej bunalmis
Kan du berätta vad titeln lärobok som jag kan konstatera att analysen av cosinus?
Det skulle vara mycket uppskattat
Kan du berätta vad titeln lärobok som jag kan konstatera att analysen av cosinus?
Det skulle vara mycket uppskattat
F
free1965tv
Guest
WowTill efter 39 sekunder:bunalmis skrev:
2Cos (x) = e ^ JX e ^-JX2jSin (x) = e ^ JX-e ^-JX∫ cos x dx = 1 / 2 ∫ e ^ JX DX 1 / 2 ∫ e ^-JX dx = = 1/2j e ^ JX - 1/2j e ^-JX C = Sin (x) C
Till efter 1 timmar 52 minuter:
∫ cos x dx = sin (x) Cd / dx (Sin (x) C) =?d / dx Sin (x) = lim dx -> 0 (1/dx) (Sin (x dx) - Sin (x)) = lim dx -> 0 (Sin (x) cos (dx) Sin (dx) cos (x) - Sin (x)) / dxLim dx -> 0 Sin (x) cos (dx) / dx - Sin (x) / dx = 0Lim dx -> 0 Sin (dx) cos (x) / dx = cos (x)d / dx Sin (x) = cos (x)
2Cos (x) = e ^ JX e ^-JX2jSin (x) = e ^ JX-e ^-JX∫ cos x dx = 1 / 2 ∫ e ^ JX DX 1 / 2 ∫ e ^-JX dx = = 1/2j e ^ JX - 1/2j e ^-JX C = Sin (x) C
Till efter 1 timmar 52 minuter:
∫ cos x dx = sin (x) Cd / dx (Sin (x) C) =?d / dx Sin (x) = lim dx -> 0 (1/dx) (Sin (x dx) - Sin (x)) = lim dx -> 0 (Sin (x) cos (dx) Sin (dx) cos (x) - Sin (x)) / dxLim dx -> 0 Sin (x) cos (dx) / dx - Sin (x) / dx = 0Lim dx -> 0 Sin (dx) cos (x) / dx = cos (x)d / dx Sin (x) = cos (x)