Step 1:

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The $\"\"$ term of arithematic sequence is $\"\"$ .

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The $\"\"$ term of arithematic sequence is $\"\"$ .

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The $\"\"$ term of arithematic sequence is $\"\"$ , Where $\"\"$ is first term of sequence and $\"\"$ is common difference.

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .

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Substract equation $\"\"$ from equation $\"\"$ .

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$\"\"$

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The common difference is $\"\"$ .

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Step 2:

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

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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The first term of sequence is $\"\"$ .

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The second term of sequence is $\"\"$ .

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The third term of sequence is $\"\"$ .

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The fourth term of sequence is $\"\"$ .

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The first four terms of sequence are $\"\"$ and $\"\"$ .

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Solution:

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The first four terms of sequence are $\"\"$ and $\"\"$ .