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IF f(x)=x|x|,then the value of f'(-1)is...

IF f(x)=x|x|,then the value of f'(-1)is

A

a)1

B

b)2

C

c)-1

D

d)-2

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UNITED BOOK HOUSE-ANNUAL EXAMINATION QUESTION PAPERS 2015-EXERCISE
  1. Find the distance of the point (3, - 5) from the line 3x - 4y - 26 = ...

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  2. lim(xrarr0)(sinalphax)/(e^(betax)-1)(alpha,beta!=0)equals to

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  3. IF f(x)=x|x|,then the value of f'(-1)is

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  4. If y=2x+3,and variance of y is 4,then the standard deviation of x is

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  5. IfP(A)=0.54,P(B)=0.69and P(AcapB)=0.35,then the value of P(A'cupB')is

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  6. Let R be the relation defined on the set N of natural numbers as R ={(...

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  7. If 2f(x)+3f(-x)=2x+1,then find f(x).

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  8. Solve :tanx+tan2x+tan3x=tanxtan2xtan3x,where 0lexle2pi

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  9. In a /\ABC,sin^2A+cos^2C=cos^2Bfind angleC

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  10. Find the principal amplitude of-3-sqrt3i

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  11. If y=x+x^2+x^3+...oowhere|x|<1,prove that x=y/(1+y)

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  12. Show that the middle term in the expansion of (x+1)^(2n) is (1.3.5.......

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  13. The co-ordinates of the focus of the parabola described paraetrically...

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  14. Determine the equation of the straight line through the point (2,3)whi...

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  15. Prove that the derivative of an odd function an ever function .

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  16. Evaluate :lim(xrarry)(cos^2x-cos^2y)/(x^2-y^2)

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  17. The standard deviation of 32 numbers is 5.If the sum of the numbers is...

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  18. Fird the probability of getting a head when a coin is tossed once. Als...

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  19. Prove that Axx(BcupC)=(AxxB)cup(AxxC)

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  20. If cos theta=(acosphi+b)/(a+bcosphi)(theta,phiacute angle)show that ta...

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