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Find ∫(x^3+x^2+6)dx.

∫(x 3 +x 2 +6)dx= ∫x 3 dx +∫x 2 dx+∫6dx =x 4 /4 +x 3 /3 +6x+C.
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Answered by Georgiana I. • Maths tutor
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What is the key to writing Spanish essays?

From my experience, Spanish writing at both GCSE and at A-Level depends greatly on the quality of your essay. It is divided up into 4 marking sections. Content of the essay (/25) Range of vocabulary/phrases ...
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Answered by Jordan S. • Spanish tutor
2982 Views

How do you 'complete the square' of a quadratic equation?

To complete the square, we need to rearrange the quadratic equation in the form of ax 2 + bx + c into the form r(x + p) 2 + q, where our task is to find the values of the unkowns of r, p and q. Let's take th...
RB
Answered by Ryan B. • Maths tutor
3493 Views

Identify three types of long-term memory and give an example of each type

Long-term memory is one of the two storage types of memory. Long-term memories are memories that we are able to keep over a timescale of a couple of minutes to a whole lifetime. There are two types of long-t...
BW
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Using the trigonometric identity (sinx)^2 + (cosx)^2 = 1, show that (secx)^2 = (tanx)^2 + 1 is also a trigonometric identity.

We can divide by (cosx)^2 across the identity (sinx)^2 + (cosx)^2 = 1 (which can be derived from properties of the unit circle and a bit of Pythagoras’ theorem) to achieve [(sinx)^2 / (cosx)^2] + [(cosx)^2 /...
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Answered by Annie B. • Maths tutor
4212 Views