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The sequence is $\"\"$

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The general form of $\"\"$ -terms of quardatic equation form $\"\"$

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Substitute $\"\"$ and $\"\"$ in the general form.

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Substitute $\"\"$ and $\"\"$ in the general form.

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Substitute $\"\"$ and $\"\"$ in the general form.

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Solve the equation $\"\"$ and equation $\"\"$

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Solve the equation $\"\"$ and equation $\"\"$

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Solve the equation $\"\"$ and equation $\"\"$

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Solve the equation $\"\"$ and equation $\"\"$

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Solve the equation $\"\"$ and equation $\"\"$

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$\"\"$

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Solve the equation $\"\"$ and equation $\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in the equation $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in the equation $\"\"$ .

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Substitute $\"\"$ , $\"\"$ and $\"\"$ in the equation $\"\"$ .

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Substitute $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ in the general form of quadratic equation.

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$\"\"$

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The $\"\"$ -terms of quardatic equation form $\"\"$ .

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The $\"\"$ -terms of quardatic equation form $\"\"$ .