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If the function f(x) given by f(x)={3a x...

If the function `f(x)` given by `f(x)={3a x+b ,\ \ \ if\ x >1\ \ \ \ \ \ \ \ \ \11, if x=1\ \ \ 5a x-2b, if x<1` is continuous at `x=1` , find the values of `a` and `b` .

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The correct Answer is:
a=3, b=2
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NAGEEN PRAKASHAN ENGLISH-Continuity and Differentiability-Exercies 5a
  1. Discuss the continuity of the function f defined by f(x)=1/x , x!=0.

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  2. Discuss the continuity of the function f(x)={((|x|)/x", " xne 0)...

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  3. (i) Dissusse the continuity of the function f(x)={(|x-a|", " xne a...

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  4. Show that f(x) = sinx is continuous for all values of x.

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  5. Prove that f(x) = {sinx/x ; x != 0 and 1 ; x=0. is continuous at x=0...

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  6. If f(x) ={:{((sin 3x)/(sin 5x)", "x ne 0),(0", " x= 0):}, then d...

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  7. Show that the function f(x) ={:{((sin 3x)/(x)", "x ne 0),(1", " ...

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  8. Discuss the continuity of f(x) ={:{((sin^2 2x)/(x^2)", "x ne 0),(1", ...

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  9. Discuss the continuity of f(x) ={:{(cos""(1)/(x)", "x ne 0),(" "1",...

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  10. Discuss the continuity of f(x) ={:{(sin""(1)/(x)", "x ne 0),(" "1", ...

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  11. Discuss the continutiy of f(x) ={:{(xcos""(1)/(x)", "x ne 0),(" "0...

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  12. Disuss the continutiy of f(x) ={:{((sin^2 x)/(x^2)", "x ne 0),(" "0"...

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  13. If the function f(x) ={:{((3x^3-2x^2-1)/(x-1)", "x ne 1),(" "K", ...

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  14. For what value of k, the function f(x) ={:{(kx^2", " x le 2 ),(" ...

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  15. For what value of k, the function f(x) ={:{((x^2-4)/(x-2)", " x ne 2...

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  16. For what value of k, the function f(x) ={:{(2x+1", "x gt2),(" ...

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  17. If the function f(x) given by f(x)={3a x+b ,\ \ \ if\ x >1\ \ \ \ \ \ ...

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  18. Discuss the continuity of the function f(x) ={:{((1+cos x)/(tan^2 x...

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  19. Discuss the continuity of the function f(x) ={:{((Sinx)/(x) ", "x ...

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  20. Show that the function f(x)=2x-|x| is continuous at x=0 .

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