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Find the value of Cos square10+cos square50+ cos square 70 =?

Sandeep kumar , 7 Years ago
Grade 12th pass
anser 1 Answers
Ayanava Datta

Last Activity: 7 Years ago

the answer of the given question will be 1.5/(3/2) 
this answer will be come by using submultiple multipal formula 

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