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CBSE Class 10 Answered

if cos alpha/cos beta=m and cos alpha /cos beta=n then show that (m square +n square)cos square beta = n square also i wanted to know that how to solve equations having alpha and beta plz hurry exams are coming
 
Asked by Akshay Bhardwaj | 05 Sep, 2014, 11:53: AM
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Answered by Prasenjit Paul | 08 Sep, 2014, 10:24: AM

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