Tan48° Tan23° Tan47° Tan67°
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2
Step-by-step explanation:
Tan48° × Tan23° × Tan47° × Tan67°
=> Cot47° × Cot67° × Tan47° × Tan67°
Arranging all together,
=> Cot47° × Tan47° × Cot67° × Tan67°
=> (cos47°/sin47°) × (sin47°/cos47°) × (cos67°/sin67°) × (sin67°/cos67°)
All will cancel among themselves,
hence,
answer= 1
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