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If x=secθ[secθtanθ−tanθsecθ]−tanθ[tanθsecθ−secθtanθ], then x is (a) Null matrix (b) Identity matrix (c) Triangular matrix (d) None of these |
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Answer» If x=secθ[secθtanθ−tanθsecθ]−tanθ[tanθsecθ−secθtanθ], then x is (a) Null matrix (b) Identity matrix (c) Triangular matrix (d) None of these |
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