MCQ

M5619 · [1]
The function f(x)=dfrac2x+5x-3 has domain xinmathbbR, x≠ 3 . The inverse function f^-1 is defined for all real x except one value. Which expression gives the value excluded from the domain of f^-1 ?
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The function f is defined by f(x)=5x-2/3 . Which expression gives f(4) ?
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