Suppose there are n people in the party. The first person shakes hand with the other (n-1) guests. The second guest shakes hand with the other (n-2) guests. this will continue until the (n-1)-th guest shakes hand with the nth guest.
Total number of handshakes is (n-1) + (n-2)... + 3 + 2 + 1.
= (n-1)(n)/2
For example, 6 people in a party shake hand with other guests. So how many handshakes will be there?
=(6-1)(6)/2
=15.
ഏതാനും പേര് തമ്മില് പരസ്പരം ഹസ്തദാനം നടത്തിയാല് ആകെഹസ്തദാനങ്ങളുടെ എണ്ണംകാണുവാനുള്ള സൂത്രവാക്യമാണ്
(n-1)(n)/2
ഇവിടെ ' n ' എന്നത് ആളുകളുടെ എണ്ണമാണ്.
ഉദാഹരണത്തിന് 6 പേര് പരസ്പരം ഹസ്തദാനം നടത്തിയെങ്കില് ആകെ ഹസ്തദാനം
=(6-1)(6)/2
=15.
Click here to search study notes. Click here to view all Kerala PSC Study notes. Click here to read PSC Question Bank by Category wise. Click here to Test your knowledge by atteneding Quiz.Chandrayaan, series of Indian lunar space probes. Chandrayaan-1 (chandrayaan is Hindi for "moon craft") was the first lunar space probe of the Indian Space Research Organisation (ISRO) and found water on the Moon. It mapped the Moon in infrared, visible, and X-ray light from lunar orbit and used reflected radiation to prospect for various elements, minerals, and ice. It operated in 2008–09. Chandrayaan-2, which launched in 2019, was designed to be ISRO’s first lunar lander.
ചന്ദ്രയാൻ-1 .
Chandrayaan-1, India's first mission to Moon, was launched successfully on October 22, 2008, from SDSC SHAR, Sriharikota. The spacecraft was orbiting around the Moon at a height of 100 km from the lunar surface for chemical, mineralogical, and photo-geologic mapping of the Moon. The spacecraft carried 11 scientific instruments built in India, the USA, UK, Germany, Sweden, and Bulgaria.
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After th...
കേരളത്തിലെ പ്രധാന കലാപങ്ങൾ
Revolt Year .
Attingal Revolt 1721 .
Channar Revolt 1859 .
Guruvayoor Satyagraha 1931 .
Kallumala Agitataion 1915 .
Kayyur Revolt 1941 .
Kurichiya Revolt 1812 .
Nivarthana Agitation 1932 .
Punnapra Vayalar Revolt 1946 .
Salt Satyagraha 1930 .
Vaikkom Satyagraha 1924 .
അരുവിപ്പുറം പ്രതിഷ്ഠ 1888 .
അവസാനത്തെ മാമാങ്കം 1755 .
ആറ്റിങ്ങൽ കലാപം 1721 .
ഈഴവ മെമ്മോറിയൽ 1896 .
ഈഴവ മെമ്മോറിയൽ 1896 .
കയ്യൂർ സമരം 1941 .
കുണ്ടറ വിളംബരം 1809 .
കുറിച്യർ ലഹള 1812 .
കുളച്...
Bitcoin is a form of digital currency, created and held electronically. It allows you to move money without being traced because all transactions are anonymous. Bitcoins are just lines of computer code that hold monetary value. Those lines of code are created by electricity and computers. Bitcoin was the first crypto coin currency ever invented. Bitcoin’s “creator” is known as Satoshi Nakamoto. They have never been identified.
Bitcoin can be used to buy things electronically. The Bitcoin idea was to produce a currency independent of any central authority, transferable electronically, more or less instantly, with very low transaction fees. .
How a Bitcoin Transaction Works .
If Alice sends some bitcoins to Bob, that transaction will have three pieces of information:.
An input. This is a record of which bitcoin address was used to send the bitcoins to Alice in the first place (she received them from her fr...