Multiple choice

$\tan 68^{\circ} + \sec 68^{\circ}$, when expressed in terms of angles between $0^{\circ}$ and $45^{\circ}$, becomes

  1. $\cot 22^{\circ} +\text{cosec } 22^{\circ}$
  2. $\sin 22^{\circ} + \cos 22^{\circ}$
  3. $\cos 22^{\circ} + \tan 22^{\circ}$

  4. None of these
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A Correct answer
AI explanation

Using the complementary angle identities, we convert the given functions to fit the specified range. We write tan 68 degrees as cot 22 degrees, and we write sec 68 degrees as cosec 22 degrees. Substituting these into the original expression gives cot 22 degrees + cosec 22 degrees.

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