Question
Download Solution PDFChoose the correct option 9 sec² A-9 tan² A = _____ ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF
Concept Used:
We use the trigonometric identity: sec² A - tan² A = 1
To simplify, we can factor out constants and substitute this identity.
Calculation: Starting with the given expression:
9 sec² A - 9 tan² A
⇒ 9 (sec² A - tan² A)
Using the identity sec² A - tan² A = 1:
⇒ 9 × 1
⇒ 9
Conclusion:
The correct answer is Option 4
Last updated on Jul 1, 2025
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