Plllzzzzz solve it.....
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Tan48 tan16 tan42 tan74=1
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tan 48 tan(90-74) tan(90-48) tan 74
tan 48 cot 74 cot 48 tan 74
1
tan 48 cot 74 cot 48 tan 74
1
Komal1k:
Tq
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