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Health, 27.02.2021 18:10 theblackdot16

2. Show that
(1)
tan 48° tan 16° tan 42° tan 74° = 1
(ii
cos36° cos 54º - sin36º sin 54°=0.​

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2. Show that
(1)
tan 48° tan 16° tan 42° tan 74° = 1
(ii
cos36° cos 54º - sin36...

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