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यदि `A=[(cos^(2) alpha,sin^(2) alpha),(cos alpha,sin alpha)]` तथा `B=[(sin^(2) alpha,cos^(2) alpha),(sin alpha,cos alpha)]` हैं, तो `(A+B)` ज्ञात कीजिए।

Answer» Correct Answer - `[(1,1),(cos alpha+sin alpha,cos alpha+sin alpha)]`


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