MCQ
$\sec ^4 A-\sec ^2 A$ is equal to
- A$\tan ^2 A-\tan ^4 A$
- B$\tan ^4 A-\tan ^2 A$
- ✓$\tan ^4 A+\tan ^2 A$
- D$\tan ^2 A+\tan ^4 A$
✓
Answer
Correct option: C.
$\tan ^4 A+\tan ^2 A$
C
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