Mathematics · Trigonometry
What is the value of (sec A - tan A + 1)(sec A - tan A - 1)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(1 + tan A)
- 22 sec A
- 32 tan A (tan A - sec A)✓
- 42 tan A
Correct answer
2 tan A (tan A - sec A)
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