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Show that: (i) tan 48° tan 23° tan 42° tan 67° = 1
CBSE Class 10
CBSE Class 10 Maths
trigonometry
,
class-10-maths
Murali
April 1, 2019, 5:33am
1
Show that:
(i)
tan 48° tan 23° tan 42° tan 67° = 1
(ii)
cos 38° cos 52° – sin 38° sin 52° = 0
Murali
April 1, 2019, 5:33am
2