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Question : 15 of 160
Marks:
+1,
-0
Solution:
| tan‌α+sec‌α−1 |
| tan‌α−sec‌α+1 |
= =| tan‌α+sec‌α−(sec‌α−tan‌α)×(sec‌α+tan‌α) |
| tan‌α−sec‌α+1 |
=| (sec‌α+tan‌α)(tan‌α−sec‌α+1) |
| (tan‌α−sec‌α+1) |
=sec‌α+tan‌α= +=
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