For real x, let f(x)=x3+5x+1, then
Held on 30 Apr 2009 · Verified 6 Jul 2026.
f is one-one but not onto R
f is onto R but not one-one
f is one-one and onto R
f is neither one-one nor onto R
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If the roots of x² - 5x + k = 0 are in the ratio 2:3, then k equals:
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