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How to differentiate a bracket raised to a power i.e. chain rule

Lets say the equation to be differentiated takes the following format y = (ax²+bx+c)ⁿ, to find dy/dx: (1) Make u equal the contents of the bracket, u=ax²+bx+c. (2) Substit...

Answered by David F. • Maths tutor

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Are the supernatural elements in Marlowe's Doctor Faustus supposed to be frightening or ridiculous?

The supernatural elements in Christopher Marlowe’s Doctor Faustus are both genuinely frightening and faintly ridiculous. The conjuring of devils in Act One for instance, in which Faustus’ evocati...

Answered by Lucie R. • English Literature tutor

9343 Views

What happens upon the addition of NaOH solution (OH- ions) to a pink solution of cobalt chloride? Include equation(s) in your answer.

A blue precipitate is formed when both a few drops, or excess, of NaOH is added to a solution of cobalt chloride; this is an example of an acid-base chemical reaction.The relevant equation is: [Co(H_2...

Answered by Carolina W. • Chemistry tutor

9515 Views

How do I know which ending to use after the preposition «в»?

The preposition «в» has two meanings: in/on or to (as in movement, going to a place). When it means in or on, the noun which follows must be in the prepositional case, ending in «е». For example «мальчик ...

Answered by Eleanor B. • Russian tutor

2447 Views

Before a drug is sold and released to the public, what measures must scientists take to ensure the safety of a drug and why are these steps taken?

Phase I- The drug must be tested on animals and tissue culturesPhase II - The drug is tested on healthy volunteers in small dosesPhases III- The drug is tested on sick patients in small dosesSmall doses a...

Answered by Saranya G. • Biology tutor

2538 Views