number of neutrons in h

A sequence of numbers is said to form a harmonic progression if their reciprocals form an arithmetic progressio..

If three quantities are in harmonic progression, then the middle quantity is called the harmonic mean between the other two. Example: 1/3, 1/7, 1/11 are in H.P., then 1/7 is the middle term. Hence 1/7 is the harmonic mean between 1/3 and 1/1..

If three quantities are in harmonic progression, then the middle quantity is called the harmonic mean between the other tw..

Let a and b be two given quantities. It is required to insert n harmonic means h 1 , h 2 , h 3 ,....h n between the quantities a and ..

The last term in L.H.S of (ii) and (iii)will depend on the fact as to whether n is even or od..

One of the most important applications of De Moivre's theorem is to find the q t h roots of a complex number. Let z = x + iy be a complex number. Let z = r {cos q + i sin q } be its polar form. And z 1/q be the q th root of z. Through De ..

Question and Answers 2 Question and Answers 2.1 Question and Answers 2.2 Question and Answers 2.3 Question and Answers 2.4 ..

Argand diagram of the q th roots of a Complex number - All the q-th roots of z lie on a circle centred at the origin O and having radius equal to the real, positive q t h root of r. One of them has amplitude and others are uniformly spaced around the circle separated from others..

The L.H.S of (ii) and (iii) will have only finite number of terms, because n C r = 0 in case r>..

Let |aij| be a determinant of order n. The determinant obtained by deleting the i t h row and j t h column in which the element a i j lies is called the minor of element a i j and is denoted by M i ..