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Grade 12Algebra

If a1 a2 …....an be anusha AP with common difference d then (sec a1*sec a2)+ (sec a2*sec a3)+.........+(sec an-1*sec an)=

Profile image of Sreenath
7 Years agoGrade 12
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1 Answer

Profile image of Sreenath
7 Years ago
Sorry it is an AP.

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