I am having trouble differentiating without using the chain rule and I am looking for a quick explanation. Differentiate y=3sinx - 4cosx
you shouldn't be using chain rule in this case.Chain rule should be used when one variable is into another, had it been like,y= 3 sin ( cos 4x)in this case you use chain rule.for the given, equation,y= 3 sin x - 4 cos xdy/dx = 3 d/dx ( sin x) - 4 d/dx ( cos x) = 3 cos x - 4(-sin x) = 3cos x + 4 sinxPlease appreciate my help, by selecting my answer as the best, and add me as your tutor, Thanks!
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