Math, asked by potnurusatyanarayana, 11 months ago

Show that tan 48 tan 16° - tan 42 tan 74 =1.​

Answers

Answered by easytikona
2

Tan 48 tan 16 tan 42 tan 74=1

LHS = cot(90-48). tan 16. tan 42 . cot(90-74)

= cot 42. tan 16. tan 42 . tan 16

= cot 42. tan 42. cot 16 . tan 16

= 1× 1

= 1

LHS=RHS

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