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Quantities are said to be in Arithmetic progression when they increase or decrease by a common differenc..

Arithmetic Progression (or simply A.P.) - Quantities are said to be in Arithmetic progression when they increase or decrease by a common differen..

Quantities are said to be in Arithmetic progression when they increase or decrease by a common differen..

Let a=first term, d = common difference, l=t n =last term, s = required sum. Then, Writing the series in the reverse order, Adding together the two series, ..

The measures of the interior angles of a convex polygon are in arithmetic progression. If the smallest angle is 105° and the largest angle is 135° then find the number of sides of the polygon. => 6 or 5 or 8 or 7..

The age of fossils of plant or animal origin can be determined by carbon dating technique developed by Willard Libby in 1949. The radioactive isotope of carbon ( 6 C 1 4 ) is used to determine the date at which an animal or plant had died. Carbon Dating The metho..

All radioactive decays follow first order kinetics. Therefore, the half-life of a radioactive element is independent of the amount of sample. With the help of half-life values of a suitable radioisotope of an element, which is present in a rock, or in an artefact, the age of the rock and the artefa..

Radiocarbon dating of historical wooden - derived objects is based on the knowledge that the cosmic ray intensity (responsible for 1 4 C production) has been practically constant for thousands of years. 1 4 C is formed in the upper atmosphere by the action of cosmic radiation ..

Radiocarbon The 1 4 C so produced is eventually converted into CO 2 , which in turn is incorporated into plants and trees by the process of photosynthesis and then finds way into animals, which eat plants. As there is a natural plant-animal cycle, an equilibrium is set up and all living matter cont..

The sum of n terms of an Arithmetic Progression, S n , is given by the formula S n = n 2 ( a + l ), where a is the first term and l is the last term of the A.P. Find the first term of the A.P. if its last term is 10, and the sum of 5 terms is 40. => 0 or 5 or..