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Question : 36 of 160
Marks:
+1,
-0
Solution:
| 1 |
| tan‌x+cot‌x+sec‌x+cosec‌x |
==| sin‌x.cos‌x |
| (sin2x+cos2x)+(sin‌x+cos‌x) |
=| (sin‌x.cos‌x)(sin‌x+cos‌x−1) |
| (1+sin‌x+cos‌x)[sin‌x+cos‌x−1] |
=| (sin‌x.cos‌x)(sin‌x+cos‌x−1) |
| (sin‌x+cos‌x)2−1 |
=| (sin‌x.cos‌x)(sin‌x+cos‌x−1) |
| 2‌sin‌x‌cos‌x |
=
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