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The function as $\"\"$ .

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Find $\"\"$ .

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Differentiate with respect to $\"\"$ on each side.

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$\"\"$

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Differentiate with respect to $\"\"$ on each side.

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$\"\"$

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Differentiate with respect to $\"\"$ on each side.

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$\"\"$

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Differentiate with respect to $\"\"$ on each side.

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$\"\"$

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Observe the above four derivatives and the sequence will repeat itself for every four trials.

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Write the 103 as $\"\"$ .

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Hence we need to observe last three derivatives pattern.

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Since the third derivative in the sequence has positive sign, then $\"\"$ derivative also has positive sign.

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$\"\"$ .

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$\"\"$ .