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Find the first derivative of f(x) = tan(x).

First, use the trigonometric identity tan(x) = sin(x) / cos(x) to rewrite the function. It should now be very apparent that f(x) is now actually a ratio of two functions, and therefore the quotient rule will...
HR
Answered by Henry R. • Maths tutor
3970 Views

How do I know that what I'm writing about in the first parts of the HAT test is relevant?

In short, there's no way it wouldn't be. The only way to go wrong for sure when taking HAT is to not write down something because you think it's not relevant enough. Although history in high school (for both...
CS
1861 Views

Should I always note whether or not historians are intentionalist, functionalist, or structuralist?

In the end, as with most topics concerning history the answer depends on the topic at hand. This might be aggravating to hear, but attempting to throw in key-words such as functionalism or intentionalism whe...
CS
3054 Views

Use approximations to 1 significant figure to estimate the value of 0.101 x (51.2)^2 / (3.96)^1/2

Firstly simplify the equation down so all the elements are approximated to 1 significant figure, this gives us:0.1 x 50 2 / 4 1/2 Then work out the values of the 50 2 and 4 1/2 50 2 = 25004 1/2 =2Put these b...
LB
Answered by Louise B. • Maths tutor
4804 Views

What is the difference between the sympathetic and parasympathetic nervous systems?

These are the two branches of the autonomic nervous system, which we have no conscious control of. The sympathetic system is responsible for 'fight and flight' responses, preparing the body for exercise or s...
JB
Answered by James B. • Biology tutor
3968 Views