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Show that any positive odd integer is of the form 4q + 1 or 4q + 3, where q is some integer. Show that any positive odd integer is of the form 4q + 1 or 4q + 3 where q is some integer October 3, 2020 Category: Chapter 1 - Real Numbers , Exercise [...]

Show that every positive even integer is of the form 2q and that every positive odd integer is of form 2q+1 ,where q is some integer. Show that every positive even integer is of the form 2q and that every positive odd integer is of form 2q+1 where q is some integer October 3, 2020 [...]

Use Euclid’s aglorithm to find the HCF of 4052 and 12576. Use Euclid's aglorithm to find the HCF of 4052 and 12576. October 3, 2020 Category: Chapter 1 - Real Numbers , Exercise 7.1 , Maths , NCERT Class 10 ,

The following real numbers have decimal expansions as given below. In each case, decide whether they are rational or not. If they are rational and of the form p/q , what can you say about the prime factors of q? (i) 43.123456789 (ii) 0.120120012000120000… (iii) 43.123456789 decide whether they are rational or not. If they [...]

Write down the decimal expansions of those rational numbers in Question 1 above which have terminating decimal expansions. a) 13/3125 (b) 17/8 (c) NTD (d) 15/1600 (e) NTD (f) 23/ 2^3 5^2 (g) NTD (i) 6/15 (j) 35/50 (k) NTD state whether the following rational numbers will have a terminating decimal expansion or a non-terminating [...]

A man M1 of mass 80 kg runs up a staircase in 15 s. Another man M2 also of mass 80 kg runs up the same staircase in 20 s. The ratio of the powers developed by them will be A man M1 of mass 80 kg runs up a staircase in 15 s. Another [...]

Without actually performing the long division, state whether the following rational numbers will have a terminating decimal expansion or a non-terminating repeating decimal expansion: 77/210 state whether the following rational numbers will have a terminating decimal expansion or a non-terminating repeating decimal expansion: 77/210 Without actually performing the long division October 3, 2020 Category: Chapter [...]

Which of the following statements is correct ? a. Kinetic energy of a system can be changed without changing its momentum. b. kinetic energy of a system cannot be changed without Which of the following statements is correct ? a. Kinetic energy of a system can be changed without changing its momentum. b. kinetic energy [...]

Without actually performing the long division, state whether the following rational numbers will have a terminating decimal expansion or a non-terminating repeating decimal expansion: 6/15 state whether the following rational numbers will have a terminating decimal expansion or a non-terminating repeating decimal expansion: 6/15 Without actually performing the long division October 3, 2020 Category: Chapter [...]

Work done by a conservative force on a system is equal to a. The change in kinetic energy of the system b. The change in potential energy of the system Work done by a conservative force on a system is equal to a. The change in kinetic energy of the system b. The change in [...]