CBSE > Class 12 > Mathematics | CBSE Board | Homework Help

x^y=e^x-y Taking log both side ylogx = x-yloge (loge=1) ylogx = x-y Differentiate both side w.r.t x y/x + logx dy/dx = 1 - dy/dx dy/dx(logx+1)= 1-y/x dy/dx = x-y/x(logx+1) = ylogx/x(logx+1) = logx/(logx+1)^2 ANSWER

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Pallavi Prasad 3 years, 4 months ago

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Malvika Rai 3 years, 4 months ago

Given : x^y=e^x-y taking log both side we get, ylogx =(x-y)loge=(x-y). .....1 when x=1 then y(log1)=(1-y)=y=1 Differentiate both side w.r.t 'x' y(1/x)+logx dy/dx = 1-dy/dx =dy/dx ( logx +1) = 1 - y/x = dy/dx = x-y/x(logx +1) when x=1 then, dy/dx= 1-1/1(log1+1) = 0

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ANSWER

<font face="Times New roman"> We solve all the equations using Euclid's postulates.
Suppose $$\dfrac{1}{x}= \dfrac{1}{0}$$
Can we write x = 0? Explain.
Hint : we multiply/divide/add/subtract same number from both sides to solve all the algebruc equations

Posted by Aseem Mahajan 3 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Maths class 12 activity 9 answers

Posted by Sourabh Verma 3 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Sin invers {1} ka formula

Posted by Rahul Gola 3 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Pallavi Prasad 3 years, 4 months ago

sinπ/2 = 1 sin-¹(1) = π/2

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Neelam Baghel 3 years, 4 months ago

1/under root 1-x^2

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ANSWER

If order of A is m×n and order of B is n×a then order of AB is A)m×n B)n×m C)n×a d) m×q

Posted by Neelam Baghel 3 years, 4 months ago

CBSE > Class 12 > Mathematics

4 answers

Mehak Jindal 3 years, 4 months ago

It will be m×a but it is not there I options

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Aseem Mahajan 3 years, 4 months ago

<font face="Times New roman">Its a mistake

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Neelam Baghel 3 years, 4 months ago

But m×a options me nhi h

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Aseem Mahajan 3 years, 4 months ago

<font face="Times New roman">m×a, options are wrong

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ANSWER

If A matrix of order m×n then the matrix of order n×m is a) transpose of A b)inverse of A C) main diagonal of A D)adjoint of A

Posted by Neelam Baghel 3 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Aseem Mahajan 3 years, 4 months ago

<font face="Times New roman">(a) Transpose of a

1Thank You

ANSWER

If cos thetha=a/b find the value of cos thetha

Posted by Shanti Negi 3 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Aseem Mahajan 3 years, 4 months ago

<font face="Times New roman">$$cot \theta = \dfrac{b}{\sqrt{b^2 - a^2}}$$

1Thank You

Pushpendra Yadav 3 years, 4 months ago

a/b

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ANSWER

Activity 17 observation answers

Posted by Vedant Kendre 3 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Observation solutions of maths activity

Posted by Manasi Datla 3 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is continuous and discontinuous. Explain with example

Posted by Cute Baccha❤️ 3 years, 4 months ago

CBSE > Class 12 > Mathematics

3 answers

Cute Baccha❤️ 3 years, 4 months ago

Thanks. Sanskar

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Aseem Mahajan 3 years, 4 months ago

1Thank You

Aseem Mahajan 3 years, 4 months ago

1Thank You

ANSWER

Which matrix is the sum of a symmetric and a skew symmetric???

Posted by Cute Baccha❤️ 3 years, 4 months ago

CBSE > Class 12 > Mathematics

4 answers

Aseem Mahajan 3 years, 4 months ago

2Thank You

Cute Baccha❤️ 3 years, 4 months ago

It's square matrix

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Cute Baccha❤️ 3 years, 4 months ago

No. ?

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Aseem Mahajan 3 years, 4 months ago

1Thank You

ANSWER

How to do project work on application of calculus in maths and physics-

Posted by Ankit Mishra 3 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

We solve all the equations using Euclid's postulates.
$$Suppose, \ \dfrac{1}{x} = \dfrac{1}{0}$$
Can we write x = 0? Explain.
Hint : we multiply/divide/add/subtract same number from both sides to solve all the algebruc equations

Posted by Aseem Mahajan 3 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Aseem Mahajan 3 years, 3 months ago

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Aseem Mahajan 3 years, 4 months ago

<font face="typewriter">gfdsdhj

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ANSWER

If tan inverse (1+x) + tan inverse (1-x)=π\2 find the value of x

Posted by Rashmi Rana 3 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Aseem Mahajan 3 years, 4 months ago

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ANSWER

$$\setlength{\unitlength}{1cm} \thicklines \begin{picture}(10,6) \put(2,2.2){\line(1,0){6}} \put(2,2.2){\circle{2}} \put(6,2.2){\oval(4,2)[r]} \end{picture}$$

Posted by Aseem Mahajan 3 years, 4 months ago

CBSE > Class 12 > Mathematics

5 answers

Aseem Mahajan 3 years, 4 months ago

0Thank You

Aseem Mahajan 3 years, 4 months ago

<font type="Timee New Roman"> Hsisjjsjsjsjssj

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Aseem Mahajan 3 years, 4 months ago

1Thank You

🤟Royal Thakur 🤟 3 years, 4 months ago

No bro i don't think she is dhruv ...

1Thank You

Aseem Mahajan 3 years, 4 months ago

Royal see if khushi kamboj is dhruv

1Thank You

ANSWER

Class 12th math exercise 7.3

Posted by Rambilash Sharma 3 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Scientist ..????? 3 years, 4 months ago

Are not in syallabus of term one

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Rambilash Sharma 3 years, 4 months ago

Question13

4Thank You

ANSWER

Find $$\displaystyle \int \dfrac{\int_0^x tan^{-1}tdt}{x^2+1}$$

Posted by Aseem Mahajan 3 years, 4 months ago

CBSE > Class 12 > Mathematics

5 answers

🤟Royal Thakur 🤟 3 years, 4 months ago

But why don't you watch ipl ..?

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Aseem Mahajan 3 years, 4 months ago

No not anyone

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🤟Royal Thakur 🤟 3 years, 4 months ago

Aap rcb ko support krte ho ..? ?

2Thank You

🤟Royal Thakur 🤟 3 years, 4 months ago

Nhin bro abhi mere pass itna tym bhi nhi h ke notes bnau aur phirr book bhi pdhu , sample paper bhi krna h ...isiliye .. aur isse pehle maine notes bnaye... lekin 11 k finals me poori book pdhne me thodi prblm huye the ... term 1 ka syllabus bhi toh km h toh i think ho jayega. Book se ..

2Thank You

Aseem Mahajan 3 years, 4 months ago

You should judge. Everyone has different comfort zone. Maybe notes will be better to you. Do self inspection

1Thank You

ANSWER

If A is any matrix such that A³=0, what is A² - A + I?

Posted by Aseem Mahajan 3 years, 4 months ago

CBSE > Class 12 > Mathematics

4 answers

Aseem Mahajan 3 years, 3 months ago

0Thank You

Aseem Mahajan 3 years, 4 months ago

{tex}\rm thanks{/tex}
$$\rm Thanks $$

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🤟Royal Thakur 🤟 3 years, 4 months ago

But bro that was amazing .......

1Thank You

Aseem Mahajan 3 years, 4 months ago

There are some codong errors in that else done

1Thank You

ANSWER

$$Standard \ Derivatives \\ \boxed{\begin{array}{c|c} \bf f(x) & \bf \dfrac{d}{dx}f(x) \\ \\ \frac{\qquad \qquad}{} & \frac{\qquad \qquad}{} \\ \sf k & \sf 0 \\ \\ \sf sinx & \sf cosx \\ \\ \sf cosx & \sf - \: sinx \\ \\ \sf tanx & \sf {sec}^{2}x \\ \\ \sf cotx & \sf - {cosec}^{2}x \\ \\ \sf secx & \sf secx \: tanx\\ \\ \sf cosecx & \sf - \: cosecx \: cotx\\ \\ \sf \sqrt{x} & \sf \dfrac{1}{2 \sqrt{x} } \\ \\ \sf logx & \sf \dfrac{1}{x}\\ \\ \sf {e}^{x} & \sf {e}^{x} \end{array}}$$

Posted by Aseem Mahajan 3 years, 4 months ago

CBSE > Class 12 > Mathematics

5 answers

🤟Royal Thakur 🤟 3 years, 4 months ago

Ok bro .

0Thank You

Aseem Mahajan 3 years, 4 months ago

Nope i dont. See my answer in class 10

1Thank You

🤟Royal Thakur 🤟 3 years, 4 months ago

Ipl dekh rhe ho iss tym ..?

1Thank You

🤟Royal Thakur 🤟 3 years, 4 months ago

1Thank You

Aseem Mahajan 3 years, 4 months ago

1Thank You

ANSWER

Solve the integral
$$\sf\int xsin(cos^2x)cos(sin^2x)dx$$

Posted by Aseem Mahajan 3 years, 4 months ago

CBSE > Class 12 > Mathematics

5 answers

Aseem Mahajan 3 years, 4 months ago

\wp \wr \wedge \Z \yen \Im \intercal \in \owns \ominus \odot \oplus \otimes \oslash \oint \overgroup{} \overlinesegment{} \overleftharpoon{} \operatorname{}

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Aseem Mahajan 3 years, 4 months ago

\multimap \models \mathellipsis \mathring{} \mathsterling \maltese g \mkern{12pt}h \mskip{10pt} \medspace \minuso \mp \measuredangle

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Aseem Mahajan 3 years, 4 months ago

$$\rule{5pt}{700pt}$$

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Aseem Mahajan 3 years, 4 months ago

$$\rule{1pt}{100pt}\ \ \ \ \ \rule{20pt}{50pt} \ \rule{20pt}{60pt}\ \rule{20pt}{70pt}\ \rule{20pt}{90pt}\ \rule{20pt}{70pt}\ \rule{20pt}{60pt}\ \rule{20pt}{50pt}\\ \hline \ \ \ \ \ 5 \ \ \ \ \ 10 \ \ \ \ \ 15 \ \ \ \ \ 20\ \ \ \ \ 25\ \ \ \ \ 30\ \ \ \ \ 35\ \ \ \ \ 40$$

0Thank You

Aseem Mahajan 3 years, 4 months ago

$$\int \limits_0^x$$

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ANSWER

If A = $$\left|\begin{array}{ccc}1& a^2 & a^3 \\ 1 & b^2 & b^3 \\ 1 & c^2 & c^3 \end{array}\right|$$ and B = $$, Then prove that A = (a-b)(b-c)(c-a)(ab+bc+ca)

Posted by Aseem Mahajan 3 years, 4 months ago

CBSE > Class 12 > Mathematics

5 answers

Aseem Mahajan 3 years, 3 months ago

0Thank You

Aseem Mahajan 3 years, 3 months ago

0Thank You

Aseem Mahajan 3 years, 3 months ago

0Thank You

Aseem Mahajan 3 years, 3 months ago

0Thank You

Aseem Mahajan 3 years, 4 months ago

Ignore that B=$$

1Thank You

ANSWER

Solutions of observation of maths activity class 12

Posted by Harshit Kumar 3 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

MATHS ACTIVITY OBSERVATION , ALL ACTIVITIES

Posted by Debarghya Maity 3 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Question me kaise pehchange ki L.H.L or R.H.L dono use karne hai ? F(C) ke saath ? ..,,.......kuch questions me sirf rhl or f(C) use karke hi solve karna hota hai ?

Posted by Shreeya Asthana 3 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Anuj Kumar 3 years, 4 months ago

When the function has different values for left and right values of point C, defined in that function then we have to take both limits. When there is same value for the point on right and left (after adding or subtracting small quantity in it), we can apply direct limit

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ANSWER

If A(1,-1,3) and B(4,2,5) then find AB and|AB|

Posted by Sampada Kelkar 3 years, 4 months ago

CBSE > Class 12 > Mathematics