d/dx1x^3+6x^5
I answered the above for my uploaded jpg to post comments in nanochan. But I can't pass its CAPTCHAs... Any suggestion?
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Updated(solved): It's differential calculus.
differentiate 1x^3+6x^5 by x -> answer: 3x^2+30x^4
d/dx is a symbol of the calculus.
burnerben wrote
instead of 1 maybe capitol I