What does “Chain rule” actually mean in Differentiation, and why does it matter for JEE?
to differentiate a composite function, differentiate the outer function and multiply by the derivative of the inner.
In simple words: to differentiate a composite function, differentiate the outer function and multiply by the derivative of the inner. Getting Chain rule clear matters because JEE questions on Differentiation usually test this idea directly, not just a formula you memorised.
Key point
Chain rule
Common mistake
forgetting to multiply by the inner derivative.
Memory tip
for sin(2x), it's cos(2x)×2 — don't drop the ×2.
Tap to watch or see it right here — the app stays open (it only opens a quick search if nothing embeddable is found).