Question
Evaluate, tan 17° tan 32° + tan 32° tan 41°
+ tan 41° tan 17° =?Solution
We know that If A + B + C = 90° or π/2 Then tan A tan B + tan B tan C + tan C tan A = 1 = 17 + 32 + 41 = 90° Then, tan 17° tan 32° + tan 32° tan 41° + tan 41° tan 17° = 1
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