Doubtnut
581 old videos with fewer than 5,000 views from this channel.
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4:29
IIT JEE LIMITS AND DERIVATIVES Evaluate the limit:
`("lim")_(xvecoo)((x+2)/(x+1))^(x+3)`
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2:47
JEE MAINS 2018 Find the points of local maxima and local minima,
if any, of each of the follo...
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3:54
IIT JEE COMPLEX NUMBERS AND QUADRATIC EQUATIONS Find how many roots of the equations `x^4+2x^2-8x...
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3:54
IIT JEE TRIGONOMETRIC FUNCTIONS One of the general solutions of `sqrt(3) cos theta-3 sin theta=4 ...
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3:31
IIT JEE TRIGONOMETRIC FUNCTIONS In a triangle, if the angles `A , B ,a n dC`
are in A.P. show tha...
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1:08
IIT JEE SEQUENCES AND SERIES The geometric mean between -9 and -16 is
`12`
b. `-12`
c. `-13`
d. ...
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2:36
IIT JEE TRIGONOMETRIC FUNCTIONS In ` A B C ,`
as semicircle is inscribed, which lies on the side ...
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4:25
IIT JEE TRIGONOMETRIC FUNCTIONS If `I`
is the incenter of ` A B Ca n dR_1, R_2,a n dR_3`
re, resp...
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3:03
IIT JEE LIMITS AND DERIVATIVES Suppose that `f`
is a function such that `2x^2lt=f(x)lt=x(x^2+1)`
...
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4:04
For a frequency distribution mean deviation from mean in computed by `MdotDdot=(sumf)/(sumf|d|)`...
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4:57
IIT JEE PERMUTATIONS AND COMBINATIONS Find the maximum number of points of intersection of 7 stra...
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1:44
IIT JEE COMPLEX NUMBERS AND QUADRATIC EQUATIONS The curve `y=(lambda+1)x^2+2`
intersects the cur...
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4:13
IIT JEE COMPLEX NUMBERS AND QUADRATIC EQUATIONS The sum of the non-real root of `(x^2+x-2)(x^2+x-...
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2:04
IIT JEE SEQUENCES AND SERIES If `p ,q ,a n dr`
are inA.P., show that the pth, qth, and rth terms ...
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7:32
IIT JEE RELATIONS AND FUNCTIONS The domain of the function `f(x)=1/sqrt((1^10C_(x-1)-3X^10C_x))`
...
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2:32
IIT JEE TRIGONOMETRIC FUNCTIONS In triangle `A B C ,ifA-B=120^0a n dR=8r ,w h e r eRa n dr`
have ...
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2:51
IIT JEE SEQUENCES AND SERIES Consider the ten numbers `a r ,a r^2, a r^3, ..... ,a r^(10)dot`
If...
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3:20
IIT JEE TRIGONOMETRIC FUNCTIONS Two medians drawn from the acute angles of a right angled triangl...
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3:17
An arc of a circle is a length 5`pic m`
and the sector it bounds has an area of `20pic m^2`
. F...
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3:05
IIT JEE LOGARITHM If `x y^2=4a n d(log)_3((log)_2x)+(log)_(1/3)((log)_(1/2)y)=1`,then `x` equals
...
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3:58
IIT JEE LOGARITHM Which of the following is not the solution of `(log)_x(5/2-1/x) gt 1`
`(a)( ...
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2:37
JEE MAINS 2018 Form the differential equation of the family of
curves represented `c(y+c)^2=x...
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0:53
JEE MAINS 2018 Show that `y=c x+a/c`
is a solution of the differential equation `y=x(d^y)/(dx^)+...
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1:36
IIT JEE TRIGONOMETRIC FUNCTIONS Given `A=sin^2theta+cos^4theta,`
then for all real `theta,`
(...