Doubtnut
1,680 old videos with fewer than 5,000 views from this channel.
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4:51
`lim_(x- gtoo)(e^x((2^(x^n))^(1/(e^(x)))-(3^(x^n))^(1/(e^(x)))))/(x^n), n in N,` is equal to
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2:45
If the vertices of a triangle are at `O(0, 0), A (a, 0) and B (0, a)`. Then, the distance betw
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3:40
`int(p(x^p-1))/(x^(p+1)sqrt(1-2x^p+p x^(2p)))dx=`
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3:30
solve for `x, 4^(x-1) xx (0.5)^(3-2x)=(1/8)^-x`
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2:47
The function `f(x)` has the property that for each real number x in its domain, `1/x` is also
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5:09
Find the equation of tangents to the curve `y=x^3 +2x-4` which are perpendicular to line `x+14
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9:56
Let `I_n=int_- 1^1|x|(1+x+(x^2)/2+(x^3)/3+.....+(x^(2n))/(2n))dx` where `n in N`. If `lim_
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1:30
From 15 players the number of ways of selecting 6 so as to exclude a particular player is
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2:53
If `(4, -2)` is the one extremity of diameter to the circle `x^ 2 + y^2 - 4x + 8y - 4 = 0`,the
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6:23
For all values of `theta in(0,pi/2),` the determinant of the matrix `[(-2,tantheta+sec^2thet
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3:20
Prove the function `x/(1+tanx)` has maximum value at `x=cosx`
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4:30
The area of the region enclosed by the curvesv `y=x,x=e,y=1/x` and the positive X-axis, is
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2:10
`int(dx)/(x(x^n+1))` is equal to
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5:38
The function, `f(x)=[|x|]-|[x]|` where [] denotes greatest integer function:
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4:25
Let , `f(x)={8/pitan^(-1)(-|x|+3), |x| gt2, [(3x^2-|x|+3)/(x^2+1)], |x| lt=2` Number of intege
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5:07
`f(x)=(2^x-1)^2 /(tanxlog(1+x)) , x!=0` and `f(x)=2log2 , x=0` at `x=0` is:
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4:56
`|[n, n+1, n+2] , [P(n,n) , P(n+1, n+1), P(n+2, n+2)] , [ C(n,n), C(n+1, n+1), C(n+2, n+2)]|=`
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2:39
The sum of the series `sum_(r=0)^oo(log_3(e^(2^r)))^(- 1)` is equal to
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5:07
`int((4e^x-25)/(2e^x-5))dx=A x+B log/(2e^x)-5/(+c)` then
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6:21
As shown in the figure diameter of outer circle is12 cm. Ratio of shaded area shaded area of u
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2:49
If `(8+3sqrt(7))^n=1+f` find whether l is even or odd.
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3:03
The area of the region `R={(x,y):|x| le|y| and x^2+y^2le1}` is
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1:33
The general solution of `tan3thetatantheta = 1` is given by `(n in l)`
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1:46
If line `y - x - 1 + 2 = 0` is equally inclined to axes and equidistant from the points`(1, -