Math, asked by vamsikrishnagadde1, 11 months ago

cos invers¹(cos alfa+cos beta/1+cos alfa×cos beta) then prove that 2tan invers¹(tan alfa/2 × tan beta/2)

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Answered by sarahcecilphilips

1

Answer:

Step-by-step explanation:

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vamsikrishnagadde1: Thank you so much

sarahcecilphilips: Your welcome

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