(consider clicking the follow button for our efforts. It is similar to subscribe in YouTube) NCERT Class-9 Maths Chapter-15:Probability Questions with step-by-step answers Exercise-15.1 1. In a cricket match, a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary. 2. 1500 families with 2 children were selected randomly, and the following data were recorded: Compute the probability of a family, chosen at random, having (i) 2 girls (ii) 1 girl (iii) No girl ...
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(consider clicking the follow button for our efforts. It is similar to subscribe in YouTube) NCERT Class-9 Maths Chapter-12:Heron's Formula Questions with step-by-step answers Exercise-12.1 Answers:- Exercise-12.2 Answers:-
(consider clicking the follow button for our efforts. It is similar to subscribe in YouTube) 1. Mu hammad ibn Musa al-Khwarizmi (C.E. 780 – 850) An algorithm is a series of well defined steps which gives a procedure for solving a type of problem. The word algorithm comes from the name of the 9th century Persian mathematician al-Khwarizmi. In fact, even the word ‘algebra’ is derived from a book, he wrote, called Hisab al-jabr w’al-muqabala. A lemma is a proven statement used for proving another statement. 2. Carl Friedrich Gauss (1777 – 1855) An equivalent version of Theorem 1.2 (refer book) was probably first recorded as Proposition 14 of Book IX in Euclid’s Elements, before it came to be known as the Fundamental Theorem of Arithmetic. However, the first correct proof was given by Carl Friedrich Gauss in his Disquisitiones Arithmeticae. Carl Friedrich Gauss is o...
(consider clicking the follow button for our efforts. It is similar to subscribe in YouTube) NCERT Class-9 Maths Chapter-7:Triangles Questions with step-by-step answers Exercise-7.1 Answers:- Exercise-7.2 Answers:- Exercise-7.3 Answers:-
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(consider clicking the follow button for our efforts. It is similar to subscribe in YouTube) NCERT Class-9 Maths Chapter-10:Circles Questions with step-by-step answers Exercise-10.2 Answers:- Exercise-10.3 Answers:- Exercise-10.4 Answers:- Exercise-10.5 Answers:-
(consider clicking the follow button for our efforts. It is similar to subscribe in YouTube) NCERT Class-9 Maths Chapter-8:Quadrilaterals Questions with step-by-step answers Exercise-8.1 Answers:- Exercise-8.2 Answers:-
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