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If `f` is a real valued function given by `f(x)=27 x^3+1/(x^3)a n dalpha,beta` are roots of `3x+1/x=2.` Then, `f(alpha)=f(beta)=-9` (b) `f(alpha)=10` (c) `f(beta)=-10` (d) none of these

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RD SHARMA ENGLISH-FUNCTIONS-All Questions
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  2. If [x]^2-5[x]+6=0, where [.] denotes the greatest integer function, th...

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  3. If f is a real valued function given by f(x)=27 x^3+1/(x^3)a n dalpha,...

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  4. If 3f(x)+5f(1/x)=1/x-3 for all non-zero x , then f(x)= (a)1/(16)(...

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  19. Find the domain of each of the following functions given by f(x)=1/(sq...

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