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tan ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ + + 8 1 tan 2 2 5 sec 5 1 tan 2 1 – 1 – 1 – is equal to :

1. 1
2. 2
3. 4 1
4. 4 5

Correct answer: 2

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