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In given fig.D is a point on side BC of triangle ABC in such a way that BD/CD is equal to AB/AC .show that AD is the bisector of Angle BAC

Posted by Varun Dixit 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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I have done previous 10 years question. Is necessary to do missclinus exercises for 12th board

Posted by Adarsh . 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Sanjeet Kumar Pal 5 years, 10 months ago

Of course dear. Many questions have been asked from misc. exercises. They are the most important part of NCERT

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Loge to the power e

Posted by Purusottam Barik 5 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Sanjeet Kumar Pal 5 years, 10 months ago

1Thank You

Ansh Kwatra 5 years, 10 months ago

e^loge

2Thank You

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A man 2m high walks at a uniform speed of 6m/h away from a lamp post 6 m high . Find the rate at which length of hi shadow increases . Also find the rate at which tha tip of the shadow is moving away from the post .

Posted by Yuvraj Singh 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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A man is moving away from a tower 41.5m high at the rate of 2m/sec. Find the rate at which the angle of elevation of the top of the tower is changing,when he is at a distance of 30m from the foot of the tower. Assume the eye level is 1.5m from the ground

Posted by Vivek Gariya 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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If two different numbers are taken from the set (૦,૧,૨,૩,૪,૫,૬,૭,૮,૯,૧૦) find the probability that their sum as well as absolute sum iare both multiple of ૪

Posted by Ritika Rohila 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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Plzz check your online test 1 of probability question no.14 answer is 4/5 and option 4/5 two times .I choose one of them which said to be wrong and another 4/5 is true ...why??? Both are same option ...so both should true ..

Posted by Prachi Kumari 5 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Khuskaran Sidhu 5 years, 10 months ago

Yah‼ in many of questions, there r 2 same options in online tests & the option we choose, usually go wrong

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Prachi Kumari 5 years, 10 months ago

*4/5 is given two times *so both should be true

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Integration of 2cosx/(1+sinx).(1+sinx.sinx)

Posted by Rakesh Kumar 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Hidden Black 5 years, 10 months ago

Substitute since as t and then solve using partial fraction

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Lim x-0 e^x-e^-x-2log(1+x)/xsinx

Posted by Srijita Chatterjee 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Divya .. 5 years, 10 months ago

Answer will be zero

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Formula of cos(sin inverse x + cos inverse y)

Posted by Nayan Kumar 5 years, 10 months ago

CBSE > Class 12 > Mathematics

3 answers

Aman Yadav 5 years, 10 months ago

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Divya .. 5 years, 10 months ago

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Ruchit Agrawal 5 years, 10 months ago

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If y=x+tanx,prove that cos^2x d^2y/dx^2-2y+2x=0

Posted by Mohammed Jaseem 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

David Billa 5 years, 10 months ago

x+tanx dy/dx= 1+sec^2x d^2y/dx^2 = 0+2sec^2xtanx cos^2x×2sec^2xtanx-2x+2tanx+2x =0

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To minimise the cost of the food meeting the dietary requirements of the staple food of the adolescent student

Posted by Mayank Kumar Shah 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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How to prove that the given differential equations is a homogeneous

Posted by Venky Venkatesh 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Sumera Sumera 5 years, 10 months ago

Find dy/dx and then make y in terms of y/x, if it is possible then it is clearly homogeneous eq.n or make degree of numerator same as denominator

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How much marks can i get by solving previous year papers and sample papers in pcm board exam class12?

Posted by A B 5 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

A B 5 years, 10 months ago

Approximately how much Marks?

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Khuskaran Sidhu 5 years, 10 months ago

That depends on u,how u do

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Sir maths ki project file kese banau??

Posted by Ashish Kacktwan 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Khuskaran Sidhu 5 years, 10 months ago

There is no need

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(1+y2)+(x-e to the power minus tan inverse y)dy/dx

Posted by Sony Choudhary 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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y-xdy÷dx=a(y2+x2dy÷dx) where x=a,y=a

Posted by Sonia Arora 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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Blue print of year 2020

Posted by Vikas Singh 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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Integration E to power (1+sinx) /(1-sinx) dx

Posted by Aarti Sharma 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Aarti Sharma 5 years, 10 months ago

4Thank You

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Integrate Secx/(secx+tanx)dx

Posted by Unnati Mishra 5 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Unnati Mishra 5 years, 9 months ago

How??

0Thank You

Yuvraj Singh 5 years, 10 months ago

tanx - secx + C

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x-3/3=y-8/-1=z-3 and x+3/-3=y+7/2=z-6/4

Posted by Priti Kumari 5 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

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X=a sec O ,y= b tanO differentiation

Posted by Arvind Singh 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Life & Education 5 years, 10 months ago

dx/dO=secO.tanO dy/dO=sec^2O dy/dx =dy.dO/dO.dx =sec^2O/secO.tanO =secO/tanO =(1/cosO).(cosO/sinO) =1/sinO =cosecO

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If N=(2+√3)n where I is an integral part and F is a fractional part of N n is a natural number find value of N-N^2+NI

Posted by Amitosh Junghare 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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Find the area of a smaller region bounded by the ellipse 4 x square + 9 y square equals to 36 and straight line 2 X + 3 Y equal to 6

Posted by Rama Rathore 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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Write down a unit vector in xy plane making angle 30 with the positive direction x Axis

Posted by Chetan Kumar 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Gaurav Seth 5 years, 10 months ago

Let the unit vector is a in XY-plane

So a = xi + yj .............1

where unit vector in the direction of x-axis is i and in y-axis is j

Now given that a makes an angle of 30 with x-axis

So a.i = |a|*|i|*cos 30

=> a.i = 1*1*√3/2 (since a and i are unit vector so |a| = 1, |i| = 1 )

=> a.i = √3/2

=> (xi + yj + 0k).(1i + 0j + 0k) = √3/2

=> x = √3/2 (i.i = j.j = k.k = 1)

Again since a makes an angle of 30 with x-axis then a makes an angle of 60 with y-axis

So a.j = |a|*|j|*cos60

=>(xi + yj + 0k).(0i + 1j + 0k) = 1/2

=> y = 1/2

Now put value of x and y in equation 1, we get

a = (√3/2)i + (1/2)j

So unit vector is (√3/2)i + (1/2)j

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integral of cos2x.sin4x /cos4x(1+cos square 2x)dx

Posted by Sambeet Sahoo 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Tushar Pabla 5 years, 10 months ago

G sb ji

4Thank You

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5 +5

Posted by Prakhar Mishra 5 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Prakhar Mishra 5 years, 10 months ago

5Thank You

Prakhar Mishra 5 years, 10 months ago

2Thank You

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Find dy/dx, if y=5^sinx

Posted by A Sathiyasri 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Dolly ?️ 5 years, 10 months ago

Log5. 5^sinx .cosx

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How is mark distribution in calculus

Posted by Siddharth Singh 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Vishal Kashyap 5 years, 10 months ago

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If |A|=4 and |B|=3,then the value of |AB^-1| is

Posted by Gomathi Ganapathy 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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