Important Ncert examples 10th
NCERT Examples Class 10th Updated Chapter - 1 Real Numbers Example 1 : Consider the numbers 4n, where n is a natural number. Check whether there is any value of n for which 4n ends with the digit zero. Example 2 : Find the LCM and HCF of 6 and 20 by the prime factorisation method. Example 3: Find the HCF of 96 and 404 by the prime factorisation method. Hence, find their LCM. Example 4 : Find the HCF and LCM of 6, 72 and 120, using the prime factorisation method. Example 5 : Prove that √3 is irrational. Example 6 : Show that 5 – √3 is irrational. Example 7 : Show that 3√2 is irrational. Ch -2 Polynomials Example 1 : Look at the graphs in Figure given below. Each is the graph of y = p(x), where p(x) is a polynomial. For each of the graphs, find the number of zeroes of p(x). Example 2 : Find the zeroes of the quadratic polynomial x² + 7x + 10, and verify the relationship between the zeroes and the coeffici