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Let X be the solution set of the equation Ax=I, where A=⎡⎢⎣01−14−343−34⎤⎥⎦ and I is the corresponding unit matrix and x∈N, then the minimum value of ∑(cosxθ+sinxθ),θ∈R is |
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Answer» Let X be the solution set of the equation Ax=I, where A=⎡⎢⎣01−14−343−34⎤⎥⎦ and I is the corresponding unit matrix and x∈N, then the minimum value of ∑(cosxθ+sinxθ),θ∈R is |
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