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Find the equation of line passing through Tu como ministry and inclined at 135 degree with the positive direction of x axis

Posted by Rajesh Yadav 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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Find the equation of the line passing through 2, - 3 and inclined at 135 degree with the positive direction of x-axis

Posted by Rajesh Yadav 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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Find the equation of the line through the intersection of lines 3x+4y=7 and x-y+2=0 and slope is 5

Posted by Sk B 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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Sin40°=?

Posted by Santanu Dey 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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If nC9!=nC8!, find nC17.

Posted by Vishal Shatyendra Kumar 8 years, 1 month ago

CBSE > Class 11 > Mathematics

2 answers

Shubham Kushwaha 8 years, 1 month ago

n!/(n-9)!9!=n!/(n-8)!8! (n-8)!/(n-9)!=9!/8! (n-8)(n-9)!/(n-9)!=9×8!/8! n-8=9 n=17 nC17=> 17!/(17-17)!17! nC17=1

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Sourabh Kumar 8 years, 1 month ago

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What is the difference between universal sets and union of sets

Posted by Ankit Kumar Singh 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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Sia ? 4 years, 6 months ago

The universal set is a set which consists of all the elements or objects, including its own elements. It is represented by just a symbol 'U'. But the union of sets is an operation performed on two sets, say A and B, which results in a set that has all elements belonging either to set A and set B or both.

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Do Weekly Reviews or Unit Tests matter to 11 standard's result?

Posted by Surabhi Sharma 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Avil Panwar 8 years, 1 month ago

Yes ,they matter.

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What are the coordinates of the image of the point (2,-3,6) in the XY plane

Posted by Sowmiya Loganathan 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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2-2

Posted by Sachin Singh 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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Y do parallel lines in a plane hav same coordinates

Posted by Athulya Shalinianilnair 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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Can anyone solve binomial theorem exercise 6B of r.s.aggarwaal (reprint 2016 ) plz.... Just tell the steps, how to proceed after the 4th step

Posted by Swarnali Mondal 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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Value of log (x-1)

Posted by Anshu Verma 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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Cos4x+cos2x+cos3x÷sin4x+sin2x+sin3x=cot3x

Posted by Sakshi Kushwah 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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The sum of first three terms of g.p is13/12 and product is -1 find common ratio and terms

Posted by Vishal Manral 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Keshav Paliwal 8 years, 1 month ago

Take three terms as a/r, a & ar now product of these three is -1 so a equals -1 now using there sum a can be calculated and then the terms

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Find multiplicative inverse of 5-i/1+i

Posted by Gaurang Sahu 8 years, 1 month ago

CBSE > Class 11 > Mathematics

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the group of beautiful girls is

Posted by Utkarsh Kulshrestha 8 years, 1 month ago

CBSE > Class 11 > Mathematics

2 answers

Komal Sharma 8 years, 1 month ago

It is not defined set

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Rahul Poddar 8 years, 1 month ago

It is not a set becz beautiful is not defined

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Prove : [cos3x+2cos5x+cos7x]/[cosx+2cos3x+cos5x] = cos2x - sin2x.tan3x

Posted by Harshit Saxena 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Rahul Poddar 8 years, 1 month ago

(cos7x+cos3x)+2cos5x/(cos5x+cosx)+2cos3x. ........2cos5xcosx+2cos5x/2cos3xcos2x+2cos3x.......2cos5x (cos2x+1)/2cos3x (cos2x+1)....cos5x/cos3x.....cos (3x+2x)/cos3x......cos3xcos2x-sin3xsin2x/cos3x.. cos3xcos2x/cos3x-sin3xsin2x/cos3x.... cos3x-sin3xsin2x. .....solved

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2+8

Posted by Aman Grewal 8 years, 1 month ago

CBSE > Class 11 > Mathematics