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Grade Upto college levelTrigonometry

How can I get the result of the following by simple equation method?

1. Sin-1(x) + sin-1(y) = ?

2. 3tan-1(x) = ?

Please don't solve it by using case but create the cases from the question so that i can understand.

Profile image of Gendlal Patwa
17 Years agoGrade Upto college level
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2 Answers

Profile image of Vijay Luxmi Askiitiansexpert
17 Years ago

Answer 1

           

Profile image of Vijay Luxmi Askiitiansexpert
17 Years ago

Answer 2