Prove that a triangle with sides 2n, n^2-1 and n^2+1 is right angled. continued?

a) prove prove that a triangle with sides 2n, n^2-1 and n^2+1 is right angled. b) we can generate Pythagorean triplets by substituting various values of n in the above triplets. draw a table for values of n from 2 to 12. c) Prove that a triangle with sides 4n, n^2-4 and n^2=4 is right angled. d) Draw a table... show more a) prove prove that a triangle with sides 2n, n^2-1 and n^2+1 is right angled.
b) we can generate Pythagorean triplets by substituting various values of n in the above triplets. draw a table for values of n from 2 to 12.
c) Prove that a triangle with sides 4n, n^2-4 and n^2=4 is right angled.
d) Draw a table like in (b)
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