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March 14, 2021 8:32 pmpts 30 pts
Let f:R R be a function defined by loint Adi (x) = x + 5x +1îx 15, Then, which of the following statements is TRUE? Indifp Institute d (A) fis both one-one and onto (B)fis neither one-one nor onto (C) f is one-one but NOT onto (D) f is onto but NOT one-one suj 6uiziuet
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  • Alka gupta thankyou
    f is both one one and onto..... because f'(x) = 7x^6 +15x^2 +11 which is always greater than zero for all x belongs to R . f(x) is strictly increasing function which intersect x -...
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