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Show that 12coshx - 4sinhx = 4e^x + 8e^-x

Using the definitions of coshx and sinhx (coshx=1/2(e^x+e^-x) and sinhx=1/2(e^x-e^-x)), we can substitute these into what we want to show, giving 12(1/2(e^x+e^-x)) - 4(1/2(e^x-e^x)), expanding this out gi...

EW
Answered by Emily W. Maths tutor
3318 Views

'Women in Jane Austen's novel 'Emma' are consistently undermined by their male superiors.' Discuss.

First, in the introduction, I would suggest that you would have to define the key terms. So for example, which female characters are you going to discuss? You cannot discuss them all to great detail, so p...

AP
Answered by Alice P. English tutor
2174 Views

In the poem Mametz Wood, Owen Sheers explores ideas about conflict. Write about the ways in which Sheers presents conflict in this poem.

Sheers presents conflict through the juxtaposition of images of nature and unnatural warcraft in Mametz Wood. In the second Stanza, Sheers describes the remnants of the soldiers' bodies through the metaph...

LA
Answered by Lauren A. English tutor
18572 Views

Discuss normative and informational social influence.

Normative social influence occurs when an individual goes along with the majority because they don't want to be excluded from the group. This occurs due to compliance as people are scared of being rejecte...

LK
6703 Views

Cosine theorem?

this formula is used in triangles to define either a cosine or the side of the triangle opposite of the cosine's angle

c2=a2+b2-2abcosc

cosc= the cosine of t...

PA
Answered by Petar A. Maths tutor
3331 Views

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