prove that sqrt5 – 1 upon sqrt5 + 1 + sqrt5 + 1 upon sqrt5 – 1 = a + bsqrt5
prove that sqrt5 – 1 upon sqrt5 + 1 + sqrt5 + 1 upon sqrt5 – 1 = a + bsqrt5

What are the differences between similar triangles and congruent triangles?
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All real numbers are rational numbers.
A) True
B) False
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The L.C.M of the smallest 2 digit composite number and the smallest composite number is:
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Are all natural numbers also whole numbers?
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