The value of the expression 2 -2 - -2 is equal to -

The correct option is B 3 √(2)Like surds can be added, i.e., 2 √(2) + √(2) =√(2)(2+1) =3√(2) ...

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Addition and Subtraction of Like and Unlike Surds

The value of ...

Question

The value of the expression $2 \sqrt{2} + \sqrt{2}$ is equal to .

4 \sqrt{2}

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3 \sqrt{2}

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2 \sqrt{2}

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\sqrt{1 + 23 \sqrt{1 + 24 \sqrt{1 + 25 \sqrt{26 \times 28 + 1}}}}

(2^{3} + 2^{2} + 2^{- 2} + 2^{- 3})

Calculate the value of the expression using suitable identity $(23^{2} - 22^{2})^{2}$

|\begin{matrix} {(2^{x} + 2^{- x})}^{2} & {(2^{x} - 2^{- x})}^{2} & 1 \\ {(3^{x} + 3^{- x})}^{2} & {(3^{x} - 3^{- x})}^{2} & 1 \\ {(4^{x} + 4^{- x})}^{2} & {(4^{x} - 4^{- x})}^{2} & 1 \end{matrix}|

n

1 \cdot 2^{1} + 2 \cdot 2^{2} + 3 \cdot 2^{3} + 4 \cdot 2^{4} + \dots + n \cdot 2^{n} = 2 + 2^{n + 5},

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