দেখাই যে, \(tan^2 \cfrac{\pi}{4} sin⁡\cfrac{\pi}{3} tan⁡\cfrac{\pi}{6} tan^2⁡ \cfrac{\pi}{3}=1\cfrac{1}{2}\)


\(tan^2 \cfrac{\pi}{4} sin⁡\cfrac{\pi}{3} tan⁡\cfrac{\pi}{6} tan^2⁡ \cfrac{\pi}{3}\)
\(=(1)^2× \cfrac{√3}{2}× \cfrac{1}{√3}×(√3)^2\)
\(= \cfrac{1×\cancel{√3}×1×3}{2×\cancel{√3}}\)
\(= \cfrac{3}{2}\)
\(=1 \cfrac{1}{2}\) (প্রমাণিত)

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