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Prove that (2n+3)^2-(2n-3)^2 is a multiple of 8 for positive integer values of n

To prove that (2n+3)2-(2n-3)is a multiple of 8 we are going to deal with the first bracket and then the second bracket. When a bracket has next to it, this means that ...

SD
Answered by Sioned D. Maths tutor
23950 Views

solve sin(2x)=0.5. between 0<x<2pi


1)Take the inverse sin to take x from the sin(2x):

2x=arcsin(0.5).

2)Evaluate arcsin(0.5) to get pi/6:

so 2x= pi/6

3)Dividing by 2 to simp...

YZ
Answered by Yinglan Z. Maths tutor
24077 Views

What does it mean when we say childhood is a 'social construct'?

We know childhood as the time we spend as an infant when we are dependent on our parents and naïve to ‘adult’ concepts such as sex, war and suffering.

A social construct ...

AW
Answered by Alice W. Sociology tutor
42329 Views

What is the difference between compliance and internalisation?

Both are types of conformity, which is when we change our behaviour to fit in with the majority group. The main distinction between compliance and internalisation is whether or not our...

AW
Answered by Alice W. Psychology tutor
20768 Views

What is the difference between a Normal Fault, a Reverse Fault, and a Strike-Slip Fault?

Normal Faults and Reverse Faults are "Dip-Slip" Faults - they experience vertical movement, in line with the dip of the fault. They are identified by the relative movement of the Hanging Wall...

JT
Answered by Joseph T. Geology tutor
87606 Views

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