m and n are real numbers and m is greater than n if m^2 + n^2 , m^2 - n^2 and 2mn are the sides of triangle then prove that the triangle is right angled triangle .Fing out two pythagorian triplets using convient values of m and n...............
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Let A, B and C are the vertices of the triangle such that,
AB = m² - n²
BC = 2mn
CA = m² + n²
if we prove AB² +BC² = AC² , it means this is a right angled ∆ .
(m²-n²)² + (2mn)² = (m²+n²)²
m⁴+n⁴-2m²n² + 4m²n² = m⁴+n⁴+2m²n²
m⁴+n⁴+2m²n² = m⁴+n⁴+2m²n² [PROVED]
Now,
Let m = 4, n = 3
AB = 4² - 3² = 7
BC = 2*4*3 = 24
AC = 4²+3² = 25
7²+24² = 49+576 = 625 = = 25²
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