CBSE > Class 11 > Mathematics | CBSE Board | Homework Help

Hiii friend your answer......... √x+2x=1 (squaring the whole equation) we get, x+2x^2=1, 2x^2+x-1=0 , 2x^2+(2-1)x-1=0 , 2x^2+2x-x-1=0 , 2x(x+1)-1(x+1)=0 , (2x-1)(x+1)=0 , x=1/2 and x= -1 ....... I hope it helps you *******

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3551203/89

Posted by Yuvraj Sarswat 7 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Anam Khan 7 years, 2 months ago

39901.175 and after round off that become 39902

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Mention the formula used to find SD?

Posted by Sajid Ali 7 years, 3 months ago

CBSE > Class 11 > Mathematics

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Three consecutive coefficient in the expansion of (1+x)^n are 28,56,70 then find n?

Posted by Tanvi Radia 7 years, 3 months ago

CBSE > Class 11 > Mathematics

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Three consecutive coefficient in the expansion are 28,56,70 then find n?

Posted by Tanvi Radia 7 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

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Is it necessary in class 11 th Annual exam we need to prepare from rd to score above 90%?

Posted by Priya Dharshini ☺☺ 7 years, 3 months ago

CBSE > Class 11 > Mathematics

7 answers

Rajat Vashisth 7 years, 2 months ago

I think elements would be a better choice.

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Amrit Kaur 7 years, 2 months ago

No it is not necessary first of all complete the ncert

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Anurag Pandey 7 years, 3 months ago

Yes i think so

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Priya Dharshini ☺☺ 7 years, 3 months ago

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Aman Kumar 7 years, 3 months ago

Hmm

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Priya Dharshini ☺☺ 7 years, 3 months ago

I feel like its hard to complete rd within few months are left

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Aman Kumar 7 years, 3 months ago

Not necessary I think,, bcoz ncert may be enough for board but yaa.. I u want then u surely do.. It helps to built ur concept

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Find the sum of n terms 1+2+5+13+25+46+........ (Chapter special series)

Posted by Srashti Katre 7 years, 3 months ago

CBSE > Class 11 > Mathematics

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What is series

Posted by Gopee Singh 7 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

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A mint prepares metallic calenders specifying month , dates , days in the form of monthly sheet one plate for each month how many types of calendar should it prepare to server all the possibility in future year.

Posted by Yash Varshney 7 years, 3 months ago

CBSE > Class 11 > Mathematics

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A manufacturer has 600 litre of a 12% solution of acid.how many litres of a 30% acid must be added to it so that acid content in the resulting mixture will be more than 15% but less than 18 %?

Posted by Danish Khan 7 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

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what is the value of tan pi by 8

Posted by Ujjawal Saxena 7 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Kavita Kanojiya 7 years, 3 months ago

Route 2 - 1

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1/5x-y>=1 . Find the values of x and y.

Posted by Account Deleted 7 years, 3 months ago

CBSE > Class 11 > Mathematics

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1234 mm is epual to ? Cm

Posted by Vikash Mahto 7 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Abhishek Rai 7 years, 3 months ago

123.4 cm

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Difference between roots and solutions of a quadratic expression

Posted by Bhunesh Dadheech 7 years, 3 months ago

CBSE > Class 11 > Mathematics

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100 - 100 /100 - 100=2 provides this question

Posted by Lalit Kumar 7 years, 3 months ago

CBSE > Class 11 > Mathematics

3 answers

Vaishnavi Kalvakuntla 7 years, 3 months ago

Indeterminant form

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Aryan Jha 7 years, 3 months ago

100-100/100-100 Lhs= 10^2 - 10^2 / 10(10-10) (10+10)(10-10)/10(10-10) (10-10)will be cancelled (10+10)/10 20/10=2 Rhs=2 Hence, proved

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Isha Bhardwaj 7 years, 3 months ago

Wrong question.......

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IfP(A)=P(B) PROVE THAT A=B

Posted by Shivam Dubey 7 years, 3 months ago

CBSE > Class 11 > Mathematics

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When combination and permutation are used?How could i find in any type of questions combination is used or permutation is used?

Posted by Krishna Sharma 7 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Umakshi Sharma 7 years, 3 months ago

For combination we have to select the elements from given number of elements for e.g. how can we select the peoples for a 3 member committe from 2 boys and 5 girls and for permutation we have to arrange the elements from given number of elements for e.g. how can we sit 10 students in a row

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Check whether the following probabilities P(A) and P(B) are consistently defined 1. P(A)=0.5, P(B)=0.7, P(A union B)=0.6

Posted by Aditya Parmar 5 years, 9 months ago

CBSE > Class 11 > Mathematics