1 Answers
tan 35° = tan (90° - 55°) = cot 55°
tan 40° = tan (90° - 50°) = cot 50°
Cot 55 tan 55∙ cot 50 tan 50
=1 ∙ 1
= 1
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Answered
tan 35° = tan (90° - 55°) = cot 55°
tan 40° = tan (90° - 50°) = cot 50°
Cot 55 tan 55∙ cot 50 tan 50
=1 ∙ 1
= 1