number of protons in o2

Question: Define an odd number. Answer: A number when divided by 2 gives remainder 1 is called an odd number..

Assume the validity of the result for n equal to some arbitrary but fixed natural number, say, ..

Question: List the elements of the following sets and specify whether they are finite or infinite: Answer: (i) Since there is no natural number lying between 2 and 3, the set is a null set i.e. f . This is a finite set. (i) Since there are infinite numb..

Factorise 5x 2 - 9x - 1..

Using matrix method, solve the following system of linear equations x + y + z = 6 (1) x + 2y + 3z = 14 (2) x + 4y + 7z = 30 ..

If x:y=3:4 find value of (4x+3y) : (2x+5y..

Divide x 2 + 3x -4 by (x-1), ..

Question: For given sequence, suggest possible next three terms and find the general term. 7,11,15,... Answer: First term=7, Common difference =11 -7 = 15 - 11 = 4 The three terms form an A.P. Next three terms are 15 + 4 = 19, 19 + 4 = 23, 23 + 4 = 27 General term is = a + (n-1) d = ..

If n N, then ..

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