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| 1. |
2tan30degree by 1+tan square 30 degree.plzz solve this question |
| Answer» 2×1/underoot3 upon 1+1uponunderoot3^2=2 upon underoot3 upon 1+1upon3 = 2upon underoot3 upon 6 upon 3 =2upon underoot 3 ×1upon 2 = underoot 3 value of cos30 | |