Question

√5 + 1
√5 - 1
9. If a =
and b =
√5-1
√5 + 1
find the value of (√a +√ b )2.
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Answer 1

Step-by-step explanation:

${a + b}^{2} = {a}^{2} + {b}^{2} + 2ab$

$(a + b)( a- b) = {a}^{2} - {b}^{2}$