cot6. cot42.cot66.cot78
cot6. cot42.cot66.cot78
mahendra shah , 12 Years ago
Grade 12
Trigonometry> cot6-cot42-cot66-cot78...
2 AnswersGautham Pai M K
the answer is 1
express cot in terms of cos/sin and the use the formula as mentioned in the attached file.
Shivam Dimri
here apply the formula
tan(3A) = tan(60-a) * tan(a) * tan(60+a)
and continue...
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