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Prove that n is a prime number greater than 5 then n^4 has final digit 1

Last digit of n determines last digit of n^4. All even numbers divide by 2, so are not prime. Any number ending in 5 is a multiple of 5 so is not prime. Primes > 5 end in 1, 3, 7 or 9. If n ends in 1, 1^4...
AP
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Solve the inequality 4m +3 > 15

4m +3 >15 -3 from each side 4m >12 divide each side by 4 to get m on its own m>3
AN
Answered by Alice N. • Maths tutor
3362 Views

Was ist Trümmerliteratur

Wenn man eine bestimmten Literaturspate studiert, ist es immer wichtig den Kontext in welchem diese Literatur entstand zu berücksichtigen. Das Thema der Weltkriege ist in Deutschland noch immer sehr wichtig,...
LW
Answered by Lea W. • German tutor
1914 Views

How do I analyse an unseen prose passage

Students sometimes feel less prepared to analyse unseen prose than unseen poetry, and there are pros and cons to both, but it’s not as difficult as you might think! On the one hand, you can understand the ba...
CM
16084 Views

Why does it matter when an author describes a certain thing in a certain colour?

An author might use colour to convey a particular mood or emotion. We intuitively associate colours with certain feelings; for example, red is often associated with danger or fear. By using this colour, an a...
CG
3328 Views