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trigonometry questions....
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Solve it.....
trigonometry questions....
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Answer:
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Step-by-step explanation:
tan 48° tan 23° tan 42° tan 67°=1
=L.H.S= tan 48° tan 23° tan 42° tan 67°
=cot (90°-48°) cot (90°-23°) tan 42° tan 67°
=cot 42° cot 67° 1/cot 42°× 1/cot 67°
=1 R.H.S