Mahima Asked a Question
September 18, 2020 11:39 ampts 30 pts
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  • Deepak singh thankyou
    value of this determinant is equal to zero if any two rows or two columns are identical (same ) , so , only at x=π/4 any two rows or two columns are equal . thus x= π/4 is a root...
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    Mahima
    plz explain this
    • cropped7469225894981943147.jpg
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