The system of equation 2x+λy=8, λx+8y=3
has a unique solution if the value of λ is (are):
Held on 29 May 2025 · Verified 13 Jul 2026.
λ=±4
λ=4
λ=−4
λ is any real number
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If f(x) = 2x + 3, then f⁻¹(x) is:
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