The nth term of the Fibonacci series is defined as $T_{n} = T_{n - 1} + T_{n - 2}$ . If the difference in that squares of sixth and fifth terms of a Fibonacci series is 221, what is its $10^{t h}$ term?

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123

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147

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Cannot be determined

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Solution

The correct option is D Cannot be determined
Option (D) is the correct answer. Check the video for the approach.

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