Get Free Instant Video Solutions to Any Math Question- Doubtnut (Class 6th-12th upto IIT-JEE LEVEL)
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Get Free Instant Video Solutions to Any Math Question- Doubtnut (Cla…
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How to use the New Doubtnut App?
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How to use the New Doubtnut App?
48K viewsSep 10, 2018
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Doubtnut - IIT-JEE, NCERT Solutions, CBSE Math Doubts in English & Hindi - The All in one app
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Doubtnut - IIT-JEE, NCERT Solutions, CBSE Math Doubts in E…
527K viewsDec 21, 2018
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Doubtnut - Get an answer to your question automatically
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Doubtnut - Get an answer to your question automatically
35.5K viewsSep 1, 2017
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A fraction becomes 9/11\r\n if 2 is added to both numerator and the denominator. If 3 is added
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A fraction becomes 9/11\r\n if 2 is added to both numerator and the …
67.4K viewsJun 22, 2018
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Doubtnut - Best way to get rid of your math problems :)
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Doubtnut - Best way to get rid of your math problems :)
4.2K viewsApr 1, 2019
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Prove that: `(sin5x-2sin3x+sin x)/(cos5x-cos x)=tanx`
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Prove that: `(sin5x-2sin3x+sin x)/(cos5x-cos x)=tanx`
52.7K viewsJun 22, 2018
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Using binomial theorem, prove that `6^n-5n`\nalways leaves he remainder 1 when divided by 25.
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Using binomial theorem, prove that `6^n-5n`\nalways leaves he remai…
24.5K viewsJun 22, 2018
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The sum of four consecutive numbers in A.P. is 32 and the ratio of the product of the first and last
2:09
The sum of four consecutive numbers in A.P. is 32 and the rati…
55.1K viewsMay 4, 2018
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Solve the differential equation`(dy)/(dx)+sqrt((1-y^2)/(1-x^2))=0`
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Solve the differential equation`(dy)/(dx)+sqrt((1-y^2)/(1-…
11.9K viewsJul 30, 2018
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A train\r\n travels a distance of 480 km at a uniform speed. If the speed had been 8\r\n km/hr l
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A train\r\n travels a distance of 480 km at a uniform speed. If the spee…
159.9K viewsJun 22, 2018
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If a perpendicular is drawn from the vertex containing the right angle\r\n of a right triangle
7:13
If a perpendicular is drawn from the vertex containing the right angle\r…
32.7K viewsJun 21, 2018
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`If` D is the mid-point of the hypotenuse `A C` of a right triangle `A B C` , prove that `B D=1/...
4:57
`If` D is the mid-point of the hypotenuse `A C` of a right triangl…
24.7K viewsSep 25, 2017
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Doubtnut NEET 2023 Course with Detailed Videos, Mock Tests & 24*7 Doubt Solving
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Doubtnut NEET 2023 Course with Detailed Videos, Mock Tests & 24*…
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Find the number of solutions of `z^2+|z|^2=0.`
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Find the number of solutions of `z^2+|z|^2=0.`
5.2K viewsSep 19, 2017
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A two-digit number is 4\r\n times the sum of its digits and twice the product of the digits. Fi
4:00
A two-digit number is 4\r\n times the sum of its digits and twice the pro…
19.1K viewsJun 22, 2018
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Show that `f(x)=|x-3|` is continuous but not differentiable at `x=3.`
6:08
Show that `f(x)=|x-3|` is continuous but not differentiable at `x=3.`
29K viewsFeb 20, 2018
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The sum of a two-digit\r\n number and the number formed by reversing the order of digits is 66.
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The sum of a two-digit\r\n number and the number formed by reversi…
49.6K viewsJun 22, 2018
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Find the sum of the series: `1. n+2.(n-1)+3.(n-2)++(n-1). 2+n .1.`
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Find the sum of the series: `1. n+2.(n-1)+3.(n-2)++(n-1). 2+n .1.`
10.2K viewsSep 19, 2017
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Prove by the principle of mathematical induction that for all `n in N` : `1+4+7++(3n-2)=1/2n(3n-1)`
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Prove by the principle of mathematical induction that for al…
5.7K viewsSep 19, 2017
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Evaluate: (i) `int(2x+1)/(sqrt(3x+2))\\\\ dx` (ii) `int(3x+5)/(sqrt(7x+9))\\\\ dx`
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Evaluate: (i) `int(2x+1)/(sqrt(3x+2))\\\\ dx` (ii) `int(3x+5)/(sqrt(7x+9))\\\\ dx`
11.1K viewsJun 22, 2018
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Prove that:\n`1/(1+sqrt(2))+1/(sqrt(2)+sqrt(3))+1/(sqrt(3)+sqrt(4))+1/(sqrt(4)+sqrt(5))+1/(sqrt(...
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Prove that:\n`1/(1+sqrt(2))+1/(sqrt(2)+sqr…
22.8K viewsSep 20, 2017
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A well with\r\n 10m inside diameter is dug 14m deep. Earth taken out of it is spread all\r\n aro
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A well with\r\n 10m inside diameter is dug 14m deep. Earth taken out …
9.4K viewsJun 22, 2018
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8 men and 12 boys can\r\n finish a piece of work in 10 days while 6 men and 8 boys can finish i
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8 men and 12 boys can\r\n finish a piece of work in 10 days while 6 m…
72.7K viewsJun 22, 2018
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क्रमचय और संचय Class 11 One Shot | Class 11 Maths Chapter 6 | Permutations and Combinations in Hindi
2:18:02
क्रमचय और संचय Class 11 One Shot | Class 11 Maths Chapter 6 | …
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YouTubeDoubtnut Class 11 Hindi Medium
रैखिक असमिकाएँ Class 11 One Shot | Class 11 Maths Chapter 5 | Linear Inequalities Full Chapter NCERT
2:18:10
रैखिक असमिकाएँ Class 11 One Shot | Class 11 Maths Chapter 5 | …
28.3K views7 months ago
YouTubeDoubtnut Class 11 Hindi Medium
Solve `((dy)/(dx))=e^(x-y)(e^x-e^y)dot`
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Solve `((dy)/(dx))=e^(x-y)(e^x-e^y)dot`
11.9K viewsMay 4, 2018
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Find the derivative of sin2x from the first principle. |Class 12 MATH | Doubtnut
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Find the derivative of sin2x from the first principle. |Class 12 MATH | D…
19.3K viewsNov 18, 2021
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Solve: `dy / dx + y secx = tanx`
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Solve: `dy / dx + y secx = tanx`
20.9K viewsJul 30, 2018
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Solve the following differential equations. `(dy)/(dx)+x sin 2y=x^(3)cos |Class 12 MATH | Doubtnut
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Solve the following differential equations. `(dy)/(dx)+x sin 2y=x^(…
14.9K viewsNov 23, 2021
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