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2 3 sinx ∫ _______ dx - ∫ ________ dx cos 2x cos 2x 2 ∫ sec2x dx - 3 sinx ∫ ____________ dx 2Cos²x - 1 LET cos x = t -sinx dx = dt sinx dx = -dt 2log | sec2x + tan2x | -3 ________________________ - ∫ ______________ dt 2 2(t)²-1 log | sec2x + tan2x | + 1 3 ∫ ___________ dt (t√2)²-1 log | sec2x + tan2x | + _3_ log ( cosx√2-1 / cosx√2+1) + C 2

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Represent graphically a displacement of 40 km, 30° east of north

Posted by Shantaveeresh Unki 5 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Adi Kumar 5 years, 10 months ago

Graph is in xy plane with angle meade with y axus

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Deepa Hattila 5 years, 10 months ago

If किटी थीटा इज द एंगल बिटवीन टू वेक्टर्स ए वेक्टर एंड बी एल ए एम ओ डी

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What is the mean of ITF

Posted by Vishal Saraswat 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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(X^2+y^2)dx+3xydy=0

Posted by Leo Arockiasamy 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Dolly ?️ 5 years, 10 months ago

dy/dx= -{x²-y²}/3xy Now, let y = vx Therefore,dy/dx= x.dv/dx+v X.dv/dx+ v = (1-v²)/3v = x.dv/dx= (1-v²-3v²)/3v X.dv/dx = (1-4v²)/3v = 3v/(1-4v²).dv=1/x.dx Now integrat both side -3/8.log(1-4v²)= logx+ logc (X²-4y²)/x¹⁴÷ ³= C

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Theory of huygen principle

Posted by Nandini Sharma 5 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Leo Arockiasamy 5 years, 10 months ago

Velocity changes so wavelength changes but frequency remains same

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Leo Arockiasamy 5 years, 10 months ago

I=r

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Prove that the radius of the right circular cylinder of greatest curved surface area which can be inscribed in a given cone is half of that of the cone

Posted by Ramesh Prasad 5 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Himadri Nibu 5 years, 10 months ago

Hbbb

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Chap 13 ex 13.2 questions no 17

Posted by Mohit Poonia 5 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Sagar Pandey 5 years, 10 months ago

Bencho**

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The distance of the point having position vector -i+2j+6k from the straight line passing through the point (2,3,-4) and parallel to the vector 6i+3j-4k is

Posted by Ajay Kumar 5 years, 11 months ago

CBSE > Class 12 > Mathematics

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Solve the differential equation Dy/dx=x(2logx+1)/siny+ycosy

Posted by Shreya Gh 5 years, 11 months ago

CBSE > Class 12 > Mathematics

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Kung Fu ?? 5 years, 11 months ago

Use differentiation by parts

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If x^y - y^x = a^b , find dy/dx.

Posted by Sejal Uniyal 5 years, 11 months ago

CBSE > Class 12 > Mathematics

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Ritss ?? 5 years, 11 months ago

X^y - y^x = a^b Taking log on both the side Log X^y - Log y^x = log a^b Now, Y. Log x - x. Log y = b. Log a Differentiate wrt x dy/dx. Logx +y/x - Log y - x/y. dy/dx = 0 y/x - log y = dy/dx (x/y - Log x ) dy/dx= (y/x - Log y ) / ( x/y - Log x )

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Show that the vectors a and b and c are coplanar if a + b and b +c,c+a are coplanar

Posted by Vidhu Garg 5 years, 11 months ago

CBSE > Class 12 > Mathematics