Let d∈R, and A=[−2154+d(sinθ)+2(2sinθ)−d(sinθ)−2d(−sinθ)+2+2d], θ∈[0,2π]. If the minimum value of det(A) is 8, then a value of d is:
Held on 10 Jan 2019 · Verified 6 Jul 2026.
2(2+2)
2(2+1)
−5
−7
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