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

Answer is pi/4-x..... aram se solve ho jaega bs cosx-sinx/cosx+sinx me numerator or denominator dono me cosx divide kro..to ban jaega tan inverse(1-tanx/1+tanx) fir 1 ko tan pi/4 likh sakte h na to usme formula lga do tan inverse(tan pi/4-tanx / 1+tan pi/4tanx) jo ki tan(a+b) ka formula h...fir aaega..tan inverse(tan(pi/4-x))....solve krne k baad aaega pi/4-x...answer....

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Vivek Chaurasia 5 years ago

Aree yrr.. Cosx - sinx/Cosx +sinx ko pehle rationalise karo fir.. U can see (sinx +cosx) whole square upon cos^x+sin^x.. Fir solve ho jaayega..

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Differentiation w.r.t.x of log tan inverse x

Posted by Shweta Sharma 5 years ago

CBSE > Class 12 > Mathematics

3 answers

? ? 5 years ago

(1/tan inverse x)×(1/(1+x^2))

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Prakhar Agrawal 5 years ago

(1/tan^-1x)*(1/(1+x^2))

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Renu Sharma 5 years ago

1/tanx

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ANSWER

verify that the function given by f(x)={e^1/x -1/e^1/x + 1, when x not equals to 0 & 1 when x=0}exists at x=0

Posted by Nishtha Yaduvanshi 5 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

project on maxima and minima

Posted by Pankaj Kumar 5 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

If z and w are two complex numbers such that |zw|=1 and arg(z)-arg(w)=pi/2 then which one is correct. (a) z'w=-i (B) zw'=1-i/root 2 (C) (zw)'=i (D) zw'=-1+i/root 2

Posted by ? ? 5 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

tan(1/2sin^-1 2x/1+x^2 +1\2cos^-1 1-x^2/1+x^2)

Posted by Ankush Bamel 5 years ago

CBSE > Class 12 > Mathematics

3 answers

? ? 5 years ago

Apply inverse trigonometric formulae

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? ? 5 years ago

2x/1-x^2

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Oshan Manhas 5 years ago

Lol

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ANSWER

2tan inverse + tan inverse 1/7 = tan inverse 31/17.... Please solve this ques.

Posted by Renu Sharma 5 years ago

CBSE > Class 12 > Mathematics

1 answers

? ? 5 years ago

Question is incomplete

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ANSWER

how to make project on collection of statics ?

Posted by Aditya Tiwari 5 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Consider f:R+ -(-9,infinity) given by f(x)= 5xsquare +6x -9 prove that f is invertible with f inverse (y) = underroot 54+5y -3 divided by 5

Posted by Jaspreet Singh 5 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

tan(sin‐¹ 3/5 + cot‐¹ 3/2)

Posted by ?????? ???? . 5 years ago

CBSE > Class 12 > Mathematics

2 answers

? ? 5 years ago

It is so simple.... just change sin inverse3/5 to tan inverse 3/4 by triangle's method. Then convert cot inverse3/2 to tan inverse 2/3 and applt the formula for tan inverse 3/4 +tan inverse2/3. At last both tan and tan inverse will be cancel out and answer will be 17/6...

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Jaspreet Singh 5 years ago

Let sin -¹ 3/5 =a Sin a = 3/5 Cos a = underroot 1- sin² a = 4/5 Let cot-¹ 3/2 =b Cot b =3/2 Sin b = 1/cosec b = 1/underroot 1+cot ²b = 2/underroot 13 So, A. T. Q, = 4/5 + 2 / underroot 13 = 4under.. 13 + 10 / 5 underroot 13 = ANSWER..................!!!!!!!!!!!!!!!!

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Please give me a summary of last lesson of flamingo

Posted by Renu Sharma 5 years ago

CBSE > Class 12 > Mathematics

2 answers

Parva Rastogi 5 years ago

bro check the youtube channel dk english pathsala

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?????? ???? . 5 years ago

The narration of this story is by a French boy, Franz. Franz is a lazy boy. However, in spite of his laziness, Franz likes to play and is of a sensitive nature. Furthermore, Franz hates his teacher M. Hamel in his school and has no interest in studying French. An order has come from Berlin after taking over the districts of Alsace and Lorraine in France that the German language rather than the French should be taught in the schools there. Furthermore, it is the school French teacher M. Hamel’s last day. This teacher has been working there for forty years. Moreover, the teacher has feelings of patriotism. He is also full of nostalgia and grief. The village men also attend his ‘last lesson’ so as to honour and respect him. The village is regretting and is sad that they didn’t learn their mother tongue in their childhood. Franz receives a big shock when he learns that this is his last lesson in French. He is shocked because he does not know French. Furthermore, on learning about the last lesson, a sudden interest arises in him for learning French. Moreover, he pays careful attention and learns everything taught on this last day. Instantly, he develops liking for the teacher M. Hamel. His feelings of hatred for him suddenly came to an end. Moreover, Franz develops respect for the hard work and sincerity of his teacher. Franz is sad and ashamed for being unable to recite his lesson. Hamel explains that they all are at fault for lacking eagerness to learn. Furthermore, he also includes himself in this fault. He blames himself for lack of sincerity in teaching them. There is a reflection of his patriotism in his praise for the French language. He says that the French language is the most logical and beautiful language in the world. It seems that M. Hamel got emotional on this occasion. Furthermore, he asks the class to guard their language. He says that being close to one’s language is a way to escape the clutches of slavery. This language will assist them in attaining freedom from the Germans. The people realize the significance of their mother tongue. Moreover, they feel the reason for their defeat is illiteracy. Franz feels that it is impossible to remove one’s language from a person. This is because it is something that is natural to a person. This means that no matter how hard the opposition may try, they will fail to remove one’s language. Conclusion of the Last Lesson Summary The Last Lesson summary reflects on the importance of one’s language for any race and why it is crucial to safeguard it. Maybe it will help u

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Sin√3

Posted by Aman Belwanshi 5 years ago

CBSE > Class 12 > Mathematics

4 answers

? ? 5 years ago

Yes me too...?

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Ayush Vishwakarma?? 5 years ago

Yes i can explain.

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Anjali Kumari??? 5 years ago

Can anybody explain one one function and onto f^n??

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Anjali Kumari??? 5 years ago

What?

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ANSWER

Using elimentry operation find the invers of matrix -1 1 2 1 2 3 3 1 1

Posted by Kumar Bhaskar 5 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Represent the relation R={(x, y):x, y element of R, y<=x^2}on the xy plane [Hint : Draw the graph of the parabola and shade the region ]

Posted by Godson Raju 5 years ago

CBSE > Class 12 > Mathematics

0 answers

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If P is of order 2×3 and Q is of order 3×2, then PQ is of order??

Posted by Isha Vats 5 years ago

CBSE > Class 12 > Mathematics

4 answers

? ? 5 years ago

2×2

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Renu Sharma 5 years ago

2×2

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Anjali Kumari??? 5 years ago

See row of 1st matrix P and column of 2nd matrix Q PQ= 2×2

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Neelmani Jha 5 years ago

2×2

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S.T: Tan^-1 (√1+x^2 +x ) = π\4+1/2 tan^-1x

Posted by Khushi Jain 5 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

(1,4) (4,5) (1,5) (2,4) it is reflexive relation

Posted by Nam Tso 5 years ago

CBSE > Class 12 > Mathematics

2 answers

? ? 5 years ago

Exactly not

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Student Of The Year 5 years ago

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ANSWER

Y_- sinx

Posted by Pankaj Sharma 5 years ago

CBSE > Class 12 > Mathematics

1 answers

? ? 5 years ago

What is the exact question

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ANSWER

Properties of determinants

Posted by Priyanka Kumari 5 years ago

CBSE > Class 12 > Mathematics

3 answers

Archismita Dutta 5 years ago

All the properties of determinants are same as of matrices but in determinants we can use both the rows and columns at a time and in matrices it is more comvinient to use a single operation at a time

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Ayush Vishwakarma?? 5 years ago

Same as matrices but in determinant you can use both operation rows and coulmn.

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? ? 5 years ago

Refer Ncert and Rd Sharma

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Write all the subsets and elements of{1,2,{{3,4}}}

Posted by Nitish Sharma 5 years ago

CBSE > Class 12 > Mathematics