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Question : 61 of 160
Marks:
+1,
-0
Solution:
‌‌| x‌tan‌2‌x−2x‌tan‌x |
| (1−cos‌3‌x)(cosec‌x−cot‌x)2 |
‌=‌| 2x‌tan‌x[−1] |
| ×(3x)2[‌]2 |
‌=‌| 2x‌tan‌x(1−1+tan2x)×sin‌2x |
| (1−tan2x)‌ |
‌×9x2‌×x4‌=‌×‌×‌×‌‌=‌×2×4=‌
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