Question

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найдите производную
1.y=7-8x²/5
2.y=4x-9/3-5x
3.y= (8x-7 )³

Answer 1

(4⋅x−9−5⋅x+3)′=(4⋅x−9)′(−5⋅x+3)−(4⋅x−9)(−5⋅x+3)′(−5⋅x+3)2=4(−5⋅x+3)−(4⋅x−9)(−5)(−5⋅x+3)2(4⋅x−9−5⋅x+3)′=(4⋅x−9)′(−5⋅x+3)−(4⋅x−9)(−5⋅x+3)′(−5⋅x+3)2=4(−5⋅x+3)−(4⋅x−9)(−5)(−5⋅x+3)2 это 2