Who coined the term chromatin?

Who coined the term 'cell'?

The eighth term and 20th term of an A.P. are 22 and 46 respectively. Determine the first term, common difference and 17th term of it.

the 7th term and 14 term of an A.P are - 9 and - 23 respectively. Determine the first term and common difference. which term of the A.P is -25

The sum of the pth and the qth term of an A.P. is equal to the sum of rth and sth term of it. Show that (p-r)th term and (s-q)th terms are equal

Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. Give the magnitude and direction of (a) the force on the 7th coin (counted from the bottom) due to all the coins on its top,(b) the force on the 7th coin by the eighth coin, (c) the reaction of the 6th coin on the 7th coin.

The third term of a G.P. is square of the first term. The fifth term is 64. Determine the first term and common ratio.

If the qth term of an A.P. is twice the pth term and rth term is twice the qth term. Prove that -2p+r=3q

If the qth term of an A.P is twice the pth term and rth term is twice the qth term. prove that 2p+r=3q