bravoe08464 寫到:已知sinX微分為conX
而這題sin(√x)是要考慮連鎖律的~
所以要為分先對sin微分在乘上微分後的√x
dsin(√x) d(√x) sin(√x)
=>───── = ──── •─────
dx dx d(√x)
con√x
= con(√x)•(1/2)x^(-1/2) = ─────
2√x
typo error. It's cos not con. ^^
bravoe08464 寫到:已知sinX微分為conX
而這題sin(√x)是要考慮連鎖律的~
所以要為分先對sin微分在乘上微分後的√x
dsin(√x) d(√x) sin(√x)
=>───── = ──── •─────
dx dx d(√x)
con√x
= con(√x)•(1/2)x^(-1/2) = ─────
2√x