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Evaluate: (i) lim(xrarr0)((tanx-sinx)/si...

Evaluate: `(i) lim_(xrarr0)((tanx-sinx)/sin^(3)x)" "(ii)lim_(xrarr0)((tanx-sinx))/(x^(3))`

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`(i) lim_(xto0)((tanx-sinx))/(sin^(3)x)=lim_(xto0)((sinx-sinxcosx)/(cosxsin^(3)x))`
`=lim_(xto1)(sinx(1-cosx))/(cosxsin^(3)x)=lim_(xto0)((1-cosx))/(cosxsin^(2)x)`
`=lim_(xto0)((1-cosx))/(cosx(1-cos^(2)x))`
`=lim_(xto0)(1)/(cosx(1+cosx))=1/2" "["putting"x=0].`
(ii) `lim_(xto0)((tanx-sinx))/(x^(3))=lim_(xto0)((sinx-sinxcosx)/(x^(3)cosx))`
`=lim_(xto0)(sinx(1-cosx))/(x^(3)cosx)=lim_(xto0){(sinx)/(x).(2sin^(2)(x//2))/(x^(2)),(1)/(cosx)}`
`=lim_(xto0){(sinx)/(x).(2sin^(2)(x//2))/((x//2)^(2)).1/4/(1)/(cosx)}`
`1/2.lim_(xto0)(sinx)/(x).lim_(xto0){(sin(x//2))/((x//2))}^(2).lim_(xto0)(1)/(cosx)`
`((1)/(2)1xx1xx1^(2)xx1)=1/2.`
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RS AGGARWAL-LIMIT-SOLVED EXAMPLES
  1. Evaluate lim(x to0)(xtanx)/((1-cosx))

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  2. Evaluate: (i)lim(xrarr(pi)/(2))(sec x-tanx)" "(ii)lim(xrarr0)...

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  3. Evaluate: (i) lim(xrarr0)((tanx-sinx)/sin^(3)x)" "(ii)lim(xrarr0)...

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  4. Evaluate lim(xrarr0)((x^(3)cotx)/(1-cosx)).

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  5. lim(x->0)(sin3x+7x)/(4x+sin2x)

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  6. Evaluate lim(x-> 0) (tan3x-2x)/(3x- sin^2 x)

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  7. Evaluate lim(xrarr0)(xtan4x)/(1-cos4x).

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  8. Evaluate lim(xrarr0)((1-cosxsqrt(cos2x)))/(x^(2)).

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  9. Evaluate lim(xrarr(pi)/(4))((sinx-cosx))/((x-(pi)/(4))).

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  10. Evaluate lim(xrarr(pi)/(2))(cosx)/(((pi)/(2)-x)).

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  11. Evaluate lim(xrarr(pi)/(6))((sqrt3sinx-cosx))/((x-(pi)/(6))).

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  12. Let f(x){:{(2x+3",",xle0),(3(x+1)",",xgt0.):} Find (i) lim(xrarr0)f(...

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  13. Let f(x)={:{(x^(2)-1",",xle1),(-x^(2)-1",",xgt1.):} "Find"lim(xrarr1)f...

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  14. Let f(x)={:{((|x|)/(x)",",xne0),(0",",x=0.):} Find lim(xrarr0)f(x).

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  15. Suppose f(x)={(a+bx, x<1), (4, x=1), (b-ax, x>1):} and if lim(xrarr1) ...

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  16. If f(x)={{:(|x|+1,xlt0),(0,x=0) ,(|x|-1,xgt0):} for what value (s) ...

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  17. Let f(x)={{:(mx^(2)+n",",xlt0),(nx+m",",0lexle1),(nx^(3)+m",",xgt1):} ...

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  18. Let a(1),a(2),...,a(n) be fixed real numbers and let f(x)=(x-a(1))(...

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  19. Let f(x)={x}= greater integer less than or eqal to x. For any integer ...

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  20. If is an odd function and underset(xto0)f(x) exists then prove tha...

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