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Find the equation of lines joining the pair of vortices (0,0,0)and(1,0,2);(1,3,0)and(0,3,0).

Posted by Satyapal Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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Evaluate : Integration of xdx/(1+xtanx)

Posted by Nikita Verma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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Prove that if E and F are indepented to events , then the events E and F' are also independent .

Posted by Shivani K 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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Integration ofdx upon sinx-sin square x

Posted by Harsh Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Harsh Garg 7 years, 11 months ago

(1+cosecx)tanx + log|cosecx-cotx| + c

ANSWER

Integration of √tan x

Posted by Khushboo Khokhar 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Tanmay Dixit Dixit 7 years, 11 months ago

Put tanx=t^2

ANSWER

John bought two horses at Rs20,000each .he sold one horses at 15%gain.but he had to sell the second horse at a loss if he had suffered a loss of₹1800 on the whole transaction find the selling of the second horse

Posted by Anuj Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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A 18 notebook brougt in 333 .how much niteboik brought in 425.50

Posted by Aarna Jain 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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Mujhe intregral. Ni krna aata. 2 baar kr chuka hu bt. Kch smjh ni aata kaise kru. Plz koi help krdo.

Posted by Sudhanshu Sharma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Sudhanshu Sharma 7 years, 11 months ago

Aproova ji. Cheating ni.... half se jyada kr leta hu.

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Write the number of vectors of unit length perpendicular to both the vectors a=2i+j+2k and b=j+k

Posted by Navya Joy 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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How to prepare probability ? teen baar karli par kuch samaj na aata.

Posted by Ayush Balyan 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Sudhanshu Sharma 7 years, 11 months ago

Mind free hokr chap. Ko read kro. Plz

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4th class

Posted by Priyanker Kumar 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Y=xsinx solve the differential equation

Posted by Manish Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

2656 ke factor

Posted by Priya Singh 7 years, 11 months ago

CBSE > Class 12 > Mathematics

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Class 12 exam is in February or March????

Posted by Ankit Verma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Esha Modi 7 years, 11 months ago

Most probably March first week

ANSWER

Sin2x

Posted by Chandan Sah 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Pramod Kumar 7 years, 11 months ago

2cosxcosx-1

ANSWER

Sin invers (1/under root 2)

Posted by Siya Sharma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Shambhu Kumar 7 years, 11 months ago

Pi/4

ANSWER

Main value of sin'

Posted by Siya Sharma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Pramod Kumar 7 years, 11 months ago

1

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'

Posted by Lone Liyaqat 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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If matrix A=(2 -2 ) and A square is equal to pA then write the value of p (-2 2 )

Posted by Priyanka Lodhi 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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if the points (3,2),(x,2) and (8,-8) are collinear find 'x' using determinants.

Posted by Keshav Sharma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

3 answers

Ashish Verma 7 years, 11 months ago

Use voluntarily property

Ankit Verma 7 years, 11 months ago

3

Yuvraj Gupta 7 years, 11 months ago

Kya question hai....

ANSWER

In arts stream , if i have 6 subjects ie. English , history, geography, economics, maths and physical education (additional subject) . If i get failed in maths and scores 90 above in other 5 subjects . Then should i be declared pass or get failed on account of failing in maths ?

Posted by Ashu Bhoriya 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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Cbse sample paper 2017-18 Q no. 21

Posted by Sonia Kumari 7 years, 11 months ago

CBSE > Class 12 > Mathematics

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Q. Out of a pack of 52 cards , 2 cards are drawn at random. Find the probability of the first card to be a king and second card to be an ace of opposite shade to the first card?

Posted by Nitish Kumar 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

4467+48181&

Posted by Sumit Saini 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

RD SHARMA PAGE NO. 29.15

Posted by Parikshit Singh Baghel 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Using matrix solve the following linear equations 2x + y + Z = 2, x + 3y - Z = 5, 3x + y - 2z = 6

Posted by Aman Singh 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Satyendra Yadav 7 years, 11 months ago

IAI= -19 A= [2 1 1] X= X B=2 [1 3 -1] y 5 [3 1 -2 ]. z 6 adj A = [5 1 -8 ] [3 -7 1] [-8 1 5] A' = 1/-19 [-5 3 -4] [-1 -7 3] [-8 1 5 ] X= A'B 1/-19 [-5 3 -4] [2] [-1-7 3] [5] [-8 1 5] [6] = 1/-19 [-19] [-19] [ 19] :- X= 1 ; y= 1 ; z= -1 answer

ANSWER

F(x) =|x+1| at x=1

Posted by Rohit Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integration of √cos2x/cosx

Posted by Shivam Sharma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Anushka Banerjee 7 years, 11 months ago

Let 0≤x≤π/2 √(cos2x/cosx) =√(1-tan²x) ----- simple trig manipulation Let tanx = siny, -π/2≤y≤π/2 √(1-tan²x) = cosy, dx = cosy/(1+sin²y)dy, y = sin⁻¹(tanx) Thus, ∫√(cos2x/cosx)dx =∫cos²y/(1+sin²y) dy =∫-1 + 2/(cos²y+2sin²y)dy ---- simple trig manipulation = -y + ∫2/(cos²y+2sin²y)dy = -y + ∫2/(cos²y+2sin²y) * (sec²y/sec²y) dy ---- times sec²y/sec²y = -y + ∫2sec²y / (1 + 2tan²y) dy = -y + ∫√2 * (√2sec²y) / (1 + (√2tany)²) dy ---- manipulate a little = -y +√2 tan⁻(√2tany) + c ---- by u sub = - sin⁻¹(tanx) + √2 tan⁻¹(√2tan(sin⁻(tanx)) + c ----- take y back in = - sin⁻¹(tanx) + √2 tan⁻¹(√2tanx / √(1-tan²x)) + c Since √(cos2x/cosx) is even and - sin⁻¹(tanx) + √2 tan⁻¹(√2sinx / √(cos2x)) odd. The other "domain", π/2≤x≤ π, will lead to the same answer. The answer is confirmed by taking derivatives of - sin⁻¹(tanx) + √2 tan⁻¹(√2tanx / √(1-tan²x)) + c Some trig manipulations will result in the same solution as Wolfram|Alpha's: - sin⁻¹(tanx) = - tan¹(sinx/√cos2x) √2 tan⁻¹(√2tanx / √(1-tan²x)) = √2sin⁻¹(√2sinx)

ANSWER

Integration of cos2x/cosx

Posted by Shivam Sharma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Madhavi Likhar 7 years, 11 months ago

Expand cos2x then divide separately

ANSWER

If Y={x+√x²+1}² then show that (x²+1)d²y/dx²+xdy/dx-m²y=0

Posted by Deepak Kumar Rajput 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

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