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Differentiate y = 2x^3 + 6x^2 + 4x + 3 with respect to x.

Each term is differentiated according to the formula:

y = ax^b --> dy/dx = b*ax^(b-1)

Constants differentiate to zero.

Therefore in this...

Answered by Emma H. • Maths tutor

7644 Views

What is Mitosis?

During mitosis, one cell divides into two daughter cells.

First, the cell grows and doubles the amount of DNA (in human cells from 23 pairs of chromosomes to...

Answered by Simone V. • Biology tutor

4354 Views

Find the gradient of a curve whose parametric equations are x=t^2/2+1 and y=t/4-1 when t=2

Remember that the gradient of a curve is expressed as dy/dx. This can be solved by using the chain rule:

dy/dx = dy/dt*dt/dx. The dt in the denominator of the first term, and the numerato...

Answered by Abigail S. • Maths tutor

9198 Views

Name the 5 stages of mitosis in order

I remember using this handy mnemonic: "IPMAT".

Interphase

Prophase

Metaphase

Answered by Luke R. • Biology tutor

7536 Views

Some problems are intractable. What does it mean for a problem to be described as intractable?

An intractable problem is a problem that is solvable, but not in polynomial time or less. Such problems cannot be solved in time considered to be reasonable (i.e. not solvable quick enough to be 'usefu...

Answered by Henry B. • Computing tutor

7085 Views