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a light rod of length 1m is pivoted at its centre and two masses r attached as shown...find initial ang acc assuming the rod was initially horizontal..... *Image* why there is no torque due to tension??? ...
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a block of mass m is placed on a rough inclined plane which makes an angle @ with the horizontal..if the incline plane is placed in an elevator moving up with a uniform vel v and the block does not move,find the work done by ...
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in the neighbourhood of a rational no. there lie two irrationals..and vice versa.. ...
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in the neighbourhood of a rational no. there lie two irrationals..and vice versa.. ...
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if f(x)=(|x|(3 e1/|x|+4))/(2- e1/|x|) for x≠0 nd f(0)=0 then a)f is continuous b)f is continuous but not diff at x=0 c)f'(0) exists d)f'(0+)=2 ...
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let f(x)=x2-1,x≤1 nd f(x)=k(x-1),x>1 then a)f is continuous for only finitely many values of k b)f is discontinuous at x=1 c)f is differentiable only when k=2 d)there r infinitely many values of k for whi ...
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The derivative of the fn y=sin-1[(2x)/(1+x2)] doesn't exist for a)all values of x satisfying |x|<1 b)x=1,-1 c)all values of x for which |x|>1 d)none ...
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diff tan-1[{√(1+x2)-1}/x] wrt tan[-1(2x√(1-x2)/(1-2x2)] at x=0... ...
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x+2|y|=3y where y=f(x),then f(x) is.... A)continuous everywhere B)diff everywhere C)discontinuous at x=0 D)none ...
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f'(2+)=0 and f'(2-)=1 then a)fn is discontinuous at x=2 b)fn is continuous at x=2 c)lim f(x) ≠lim f(x) x→2+ x→2- d)nothing can be said ...
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f(x)=[x]+[-x] so for integral values of x, f(x)=0 then f'(x)=0.....so hw come it cannot be diff at integral pts.... ...
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why cant f(x)=[x]+[-x] be differentiated even though f(x)=-1 for all x??? [x] represents the greatest integer function... ...
