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| 1. |
1.tan100 + tan125 + tan100 tan125= Q2 tan15/2- sec2 15= Q3 cot70 + 4cos70 = |
| Answer» 1.tan100 + tan125 + tan100 tan125= Q2 tan15/2- sec2 15= Q3 cot70 + 4cos70 = | |