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

You can open and solve it but there is a trick n(n-1)(n-2)(n-3)(n-4) = 120 Now write 120 in multiples that are consecutive which are 1*2*3*4*5 so on comparing n=5

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Harshit Malik ... 1 year, 7 months ago

Kon se Topic ka question h yeh 🧐

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Find the mean derivation about the mean for data . 38,70,48,40,42,55,63,46,54,44

Posted by Tamil Arasan 1 year, 7 months ago

CBSE > Class 11 > Mathematics

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Abhishek Sonkar 1 year, 7 months ago

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How many 6 digits numbers can be formed from the digits 0,1,3,5,7,&9 which are divisible by 10 and no digit is repeated

Posted by Ankit Dangi 1 year, 7 months ago

CBSE > Class 11 > Mathematics

2 answers

Abhishek Sonkar 1 year, 6 months ago

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Abhishek Sonkar 1 year, 7 months ago

1,5

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Find the equation of line which passes through the point ( 2, 3 ) and making an angle of 45° degree with the line 3 X + Y - 6 =0

Posted by Hina Tanwar 1 year, 7 months ago

CBSE > Class 11 > Mathematics

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Activity: to plot the graphs of sinx , sin2x , 2sinx and sinx/2 using same coordinate axes

Posted by Chitransh Sahu 1 year, 7 months ago

CBSE > Class 11 > Mathematics

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Find the locus of mid point of the circle x²+ y² = a² which subtends a right at the point (c,0) .

Posted by Ojasav Goel 1 year, 7 months ago

CBSE > Class 11 > Mathematics

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Find the equation of circle passing through point (1,1) and it's centre lie on the intersection of the line . x+y=5, x-y=1

Posted by Komal Preet 1 year, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Yash Kumar 1 year, 7 months ago

Don't post personal information, mobile numbers and other details.
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Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
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If (x/3+1, y-2/3) =(5/3, 1/3) find the value of x and y

Posted by Anirudh D Kashipathi 1 year, 7 months ago

CBSE > Class 11 > Mathematics

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Harshit Malik ... 1 year, 7 months ago

X/3+1=5/3 X/4=5/3 Cross multiplication 3x=20 X=20/3 ... And, Y-2/3=1/3 Cross multiplication 3y-6=3 3y=3+6 3y=9 Y=9/3 Y=3....

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Find a b n n is in the special of a + b the power n if the first term in the is the first the first three terms of expansion are 729 7290 and 30375 respectively

Posted by Pari Kumari 1 year, 7 months ago

CBSE > Class 11 > Mathematics

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Fundamental rules of counting

Posted by Ashraf Mazhar 1 year, 7 months ago

CBSE > Class 11 > Mathematics

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Prove that sinx - 3x ÷ Sin²x-cos²x = 2 sinx

Posted by Yogesh Yogi 1 year, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Nikhil 11C Commerce 1 year, 7 months ago

https://www.teachoo.com/2192/584/Ex-3.3--20---Prove-sin-x---sin-3x---sin2-x---cos2-x--2-sin-x/category/Ex-3.3/

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Express the recurring decimal 0.125125125 as a rational number

Posted by Jyoti Kumari 1 year, 7 months ago

CBSE > Class 11 > Mathematics

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Solve the following system of inequalities graphically: x>_3,y>_2

Posted by Mania Rai 1 year, 8 months ago

CBSE > Class 11 > Mathematics

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A^ prime cap (C - B),draw venn diagram

Posted by Prasana Jayaselva 1 year, 8 months ago

CBSE > Class 11 > Mathematics

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The seventh term of a G.P. is 8 times the fourth term and 5th term is 48.Find the G.P.

Posted by Arpit Varma 1 year, 8 months ago

CBSE > Class 11 > Mathematics

1 answers

Tanvi Garg 1 year, 8 months ago

a7=8(a4)....…(1) a5=48.....(2) From eq (1). ar^6=8(ar^3) ar^6/ar^3=8 r^3=8 r=2 From eq (2) ar4=a(2)^4 a(16)=48 a=48/16 a=3 Therefore a=3,,r=2 then G.P is 3,6,12,24,48....

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Find the domain and range of f(x)= √[x]-x where [x] is greatest integer function

Posted by Abhipsa Behera 1 year, 8 months ago

CBSE > Class 11 > Mathematics