1- If a -5-2 -6 and b -1 la-then what will be the value of A 2- b 2

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Identity (x+y)(x-y)

1. If a =5+2 ...

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1. If a=5+2√6 and b=1\a,then what will be the value of A2+b2

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a = \frac{\sqrt{5} + 1}{\sqrt{5} - 1}

b = \frac{\sqrt{5} - 1}{\sqrt{5} + 1}

\frac{a^{2} + a b + b^{2}}{a^{2} - a b + b^{2}}

(a + b) = 6

a b = 2

\frac{1}{a^{2}} + \frac{1}{b^{2}}

If , a=5+√2 and b=1÷a then find the value of a²+b²

If $(a + b) = 6$ , and $a b = 2$ , then the value of $\frac{1}{a^{2}} + \frac{1}{b^{2}}$ is equal to

{cos}^{- 1} a + {cos}^{- 1} b + {cos}^{- 1} c = π

(a \sqrt{1 - a^{2}} + b \sqrt{1 - b^{2}} + c \sqrt{1 - c^{2}})

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