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How can i download elements mathematics (FOUNDATION) book solution

Posted by Mausam Chahal 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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Find the square root of 1+i

Posted by Subh Choudhury 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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K(k+1)(k+2)÷3

Posted by Ripush Garg 6 years, 8 months ago

CBSE > Class 11 > Mathematics

1 answers

Dev Kumar Aidaswani 6 years, 8 months ago

We first take P (n)=1 Then, P (n)=1 (1+1)(1+2) =1 (2)(3) P (n)=6 Therefore 6is divisible by3 So,P (n)is true for 1 Now let us assume k (k+1)(k+2)=3x Now let p (n)=k+1 So, K+1 (K+2)(K+3) SO IF K(K+1)(K+2) IS DIVISIBLE BY 3 SO EITHER ONE OF THEM IS DIVISIBLE BY 3 IF K IS MULTIPLE OF 3 SO IN K+1 (K+2)(K+3) K+3 IS MULTIPLE OF 3 SO THE ABOVE NO. IS DIVISIBLE BY 3 SIMILARILY THE CASE APPLIED WITH K+1 AND K+2 WE GET IN ALL CASES 3 IS DIVISIBLE THEREFORE K (K+1)(K+2) IS DIVISIBLE BY 3 HENCE PROVED

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Formula of (a-b)²

Posted by Shashank Shukla 6 years, 8 months ago

CBSE > Class 11 > Mathematics

1 answers

Yogita Ingle 6 years, 8 months ago

(a - b)² = a² - 2ab + b²

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Prove 1+tan55+tan55*tan100=tan100

Posted by Prateek Panda 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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| a + ib |= 1

Posted by Raunak Babu 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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A union B is equals to c and A intersect B is equal to fi so prove that A equals to C minus B

Posted by Dazing Sanskar 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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Sin105+cos105=cos45

Posted by Mr Topper 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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If z-1/z+1 is purely imaginary find modulus z

Posted by Satyendra Kumar 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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Write all the possible subsets for {1,2,3,4,5}

Posted by Prangshuman Kalpajit 6 years, 8 months ago

CBSE > Class 11 > Mathematics

1 answers

Ravishankar Sahu 6 years, 8 months ago

{1},{2},{3 },{4},{5},{1,2},{1,3},{1,4},{1,5},{2,3},{2,4},{2,5},{3,4},{3,5},{4,5},{1,2,3},{2,3,4},{3,4,5},{1,3,4},{1,4,5},{2,4,5},{1,3,5},{1,2,4},{2,3,5},{1,2,5},{1,2,3,4},{2,3,4,5},{1,3,4,5}{1,2,4,5},{1,2,3,5},{1,2,3,4,5},{ø}.

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If z1=z2=z3.........=zn=1 then prove that 1/z1+1/z2+1/z3+.........+1/zn=z1+z2+z3+.........+z4

Posted by Gautam Bhatia 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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If cos(A-B)=p and sin(A+C)=q then prove that p^2+q^2-2pqsin(B+C)=cos^2(B+C)

Posted by Chetan Agarwal 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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Cotπ /8-tanπ/8=2

Posted by Raunak Raunak 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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Ex 2.2 questions no 5

Posted by Priyanshu Bhaskar 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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School awarded 42 medals in hockey

Posted by Nishant Yadav 6 years, 8 months ago

CBSE > Class 11 > Mathematics

1 answers

Mohd Zubair 6 years, 8 months ago

this is example

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Find the derivative of f(x) = secx using first principal

Posted by Harjinder Pal Singh 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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(1+tan1)(1+tan2)(1+tan3)....(1+tan45)

Posted by Pushpa Kumari 6 years, 8 months ago

CBSE > Class 11 > Mathematics

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Had CBSe changed the pattern of question paper from this year? If yes, then in which ways??

Posted by Simran Kumari 6 years, 8 months ago

CBSE > Class 11 > Mathematics

3 answers

Sarthak Agarwal 6 years, 8 months ago

4- 6 marker questions

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Sarthak Agarwal 6 years, 8 months ago

Yes now there are 20-1 marker questions ,6 2marker, 6 4markers and

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Prabh Singh 6 years, 8 months ago

No pattern has been changed till today.

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(k-1)x^2=kx-1 find K so that one root is -3

Posted by Pushkar Budholia 6 years, 8 months ago

CBSE > Class 11 > Mathematics

1 answers

Ujjwal Mishra 6 years, 8 months ago

(k-1)x^2=kx-1 This can be written as; (k-1)x^2-(kx-1)=0 (k-1)x^2-kx+1=0 Put x= -3 as this is a zero of polynomial: (k-1)(-3)^2-k(-3)+1=0 (k-1)(9)+3k+1=0 9k-9+3k+1=0 9k+3k-9+1=0 12k-8=0 12k=8 k=8/12 k=2/3 So, the value of k is 2/3 so that one of the zero of this polynomial is -3. #Hope this may be helpful for you...

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2^n+1=5

Posted by Prateek Panda 6 years, 8 months ago

CBSE > Class 11 > Mathematics