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Differentiate y = x^3 + 2x^2 + 4x + 3

3 x 2 + 2x + 4
BB
Answered by Billy B. Maths tutor
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Describe the difference between reflection and refraction (assume the mediums have smooth surfaces)

Reflection: a wave hits a surface, and bounces back into the medium it was originaly in Refraction: a wave enters a medium with a different refractive index to the original medium it was travelling in, at an...
AB
Answered by Abigail B. Physics tutor
2977 Views

How do you form an aorist verb?

In Ancient Greek, the aorist is the equivalent to our simple past. There are two forms of aorists: the sigmatic first aorist and the thematic second aorist. The sigmatic first aorist is formed on the 3rd pri...
CW
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Find the integral of a^(x) where a is a constant

Starting with ∫a x dx , We can re-write a x using logs as e ln(a)*x using some of their properties We use the substitution u = ln(a)*x (as such du/dx = ln(a)) allowing us to easily integrate e u with respect...
AP
Answered by Andreas P. Maths tutor
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How do you form subjunctives in French and when should you use them?

The simplest way to form any present subjunctive is to take the verb, conjugated in the present indicative and put it the third person plural. Let's take the verb 'finir' as an example. The third person plur...
CW
Answered by Caitlin W. French tutor
3836 Views