1.

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

Answer» If x=secθ[secθtanθtanθsecθ]tanθ[tanθsecθsecθtanθ], then x is

(a) Null matrix
(b) Identity matrix
(c) Triangular matrix
(d) None of these


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