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Find the derivative of |f(x)| with respe...

Find the derivative of `|f(x)|` with respect to x, hence, write down the derivative of `|cosx|`.

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The correct Answer is:
`(f(x)f'(x))/(|f(x)|)and-(sinxcosx)/(|cosx|)`
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CHHAYA PUBLICATION-MISCELLANEOUS EXAMPLES-CALCULUS
  1. If f(3)=6andf'(3)=2, find the value of lim(xto3)(xf(3)-3f(x))/(x-3).

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  2. If y=f{f(x)},f(0)=0andf'(0)=5, find [(dy)/(dx)](x=0)

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  3. Find the derivative of |f(x)| with respect to x, hence, write down the...

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  4. Prove that, lim(ntooo)e^((2)/(n)+1)=e

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  5. Prove that, lim(ntooo)[(n)/(n^(2))+(n+1)/(n^(2))+(n+2)/(n^(2))+........

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  6. Prove that, lim(ntooo)(3n^(3)-5n^(2)+4)/(5+3n^(2)-4n^(3))=-(3)/(4)

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  7. Prove that, lim(xtooo)(4x^(3)-5x^(2)+6x+9)/(3x^(4)+4x^(2)-11)=0

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  8. Prove that, lim(ntooo)(1^(2)+2^(2)+3^(2)+.......+(n+2)^(2))/(n^(3))=...

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  9. Prove that, lim(xtooo)((1)/(4)+(1)/(4^(2))+(1)/(4^(3))+.......+(1)/(...

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  10. Prove that, lim(xtooo)(1+2+3+......"to" (4x+1)"terms")/((x+1)^(2))=8

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  11. Prove that, lim(ntooo)(3.5+5.7+7.9+.......+(2n+1)(2n+3))/(n^(3))=(4)...

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  12. Prove that, lim(xtooo)sqrt(x)(sqrt(x+3)-sqrtx)=(3)/(2)

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  13. Prove that, lim(ntooo)(sqrt(1+n+n^(2))-n)=(1)/(2)

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  14. Evaluate : lim(xtooo)(pe^(x)+qe^(-x))/(re^(x)+se^(-x))(rne0)

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  15. Evaluate : lim(xto-oo)(ae^(x)+be^(-x))/(ce^(x)+de^(-x))(dne0)

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  16. Find from first principle the differential coefficients of the followi...

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  17. Find from first principle the differential coefficients of the followi...

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  18. Find from first principle the differential coefficients of the followi...

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  19. Find from first principle the differential coefficients of the followi...

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  20. Find the differential coefficients of the following functions : sin(...

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