If a − 1 a = 10 ; Find a 2 − 1 a 2

If `"a" - 1/"a" = 10`; find `"a"^2 - 1/"a"^2`

बेरीज

`"a"^2 - 1/"a"^2`

= `("a" + 1/"a") ("a" - 1/"a")`

= `(±2sqrt(26)) (10)`
= ±20`sqrt(26)`.

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पाठ 3: Expansions - Exercise 4.1

पाठ 3 Expansions
Exercise 4.1 | Q 10.2

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