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If a, b, c, d are four distinct positive number in GP then prove that a+d > b+c.

Posted by Rohit Shekhar 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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Formula for mean

Posted by Ajay Dara 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Tanya Modanwal 7 years, 10 months ago

Direct method _ X ={ X\N Assume mean method _ X = A+{d/N

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In cbse sample papers

Posted by Samriddhi Singh 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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Can I get the solutions of sample paper paper 04 and sample paper 05 ...Of class 11 th mathematics

Posted by Samriddhi Singh 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Ritika Thakur 7 years, 10 months ago

Where is sample paper 4 and 5 ?

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Find derivative of cosx by using first principle

Posted by Paras Jain 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Harsh Rai 7 years, 10 months ago

-Sinx

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What is variance

Posted by Prashant Goyal 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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What do you mean by 'mutually exclusive event'?

Posted by Vaibhav Singh 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Gaurav Bansal 7 years, 10 months ago

Have no common elements

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√2 irrational verify

Posted by Ningaraj Benakatti 7 years, 10 months ago

CBSE > Class 11 > Mathematics

2 answers

Harsh Rai 7 years, 10 months ago

Yes,since value is non-terminating & non-repeating.

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Pankaj Kumar 7 years, 10 months ago

Yes

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sin20°sin40°sin60°sin80°=3÷16

Posted by Amit Kumar 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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X/(1+tanx)

Posted by Naveen Kumar 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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Prove that, cos 6x =32cos^6 x -48 cos^4 x +18 cos^2 x -1.

Posted by Hamdan Hamdan 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Hamdan Hamdan 7 years, 10 months ago

Ftgt

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Prove that : Tan x+ tan (x + 10/3) + tan (x +2π/3) =3

Posted by Ridhi Rajput 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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why 0/0 doesn't equal to 0 as we know that 0*0=0 then we can write 0/0=0 but that's wrong why?? why we take it as doesn't defined?

Posted by Ritika Panwar 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Amandeep Kumar 7 years, 10 months ago

Because 0=0/1 Because we can not represent a number whose denominator is 0 . If the denominator becomes 0 .. It will be infinity.

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Application of reflective property of ellipse for light

Posted by Anurag Kumar 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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The sum of the coefficients of the first three terms of the expansion of [x-3/x²] is 559 find the term of expansion containing x³

Posted by Shruti Sharma 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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What is the pattern of exam..chapter wise marks schedule please

Posted by Rajinder P Singh 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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Answer of chapter probability missc ex quest no 10 ii part is given wrong .... What's the correct answer

Posted by Harsh Tripathi 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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If sinA=1/2(x+1/x) then prove that sin3A +1/2(x^3+1/x^3)=0

Posted by Akila Harshu 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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Am.8 and gm 5 obtain quadratic eqn

Posted by Prateek Yadav 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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Tan theta + tan2theta+√3tan theta tan2theta =√3

Posted by Chirag Verma 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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Lim. 4x*x-1 X-1/2. 2x-1

Posted by Adarsh Raj 7 years, 10 months ago

CBSE > Class 11 > Mathematics

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Find domain and range of the real function under root 9-x²

Posted by Nitin Pal 7 years, 10 months ago

CBSE > Class 11 > Mathematics

2 answers

Ankit Pilania 7 years, 10 months ago

Domain=[-3,3] ,range=[0,3]

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Abc D 7 years, 10 months ago

Domain={-3,3} range={0,3}

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(/3+/2)6_(/3-/2)6 evaluate

Posted by Bikram Attri 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Chandrashekhar Wankhede 7 years, 10 months ago

Take out 6 common.. Answer of bracket is 2 * root 2.. Final answer 12 root 2

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Sin16A/16sinA =cosA cos 2A cos4A cos8A

Posted by Priyanka Yadav 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Chandrashekhar Wankhede 7 years, 10 months ago

Using Identity Sin 2x = 2 sin X cos X , Sin 16A = 2 sin 8A cos 8A = 2 ( 2 sin 4A cos 4A) cos 8 Expand in similar way for sin 4A and then sin 2A, You will get required answer..

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(x+1)(x+2)(x+3)(x+4)=120

Posted by Shruti Sharma 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Ankit Pilania 7 years, 10 months ago

X=1

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Find the sum of n terms:- 5²+6²+7²+.....+20²

Posted by Yash Saxena 7 years, 10 months ago

CBSE > Class 11 > Mathematics

1 answers

Chandrashekhar Wankhede 7 years, 10 months ago

Sum of squares of first n natural numbers = n(n+1)(2n+1)/6 Answer of given question = sum of squares of first 20 natural numbers - sum of squares of first 4 natural numbers

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e^√tan x

Posted by Ram Joshi 7 years, 10 months ago

CBSE > Class 11 > Mathematics