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Yogita Ingle 5 years, 1 month ago
Unit digit of a square of a number is equal to the unit digit of square of unit digit of that number.
So,
81 - Unit digit of square of 81 will be 1.
Gaurav Seth 5 years, 1 month ago
Question 1: What will be the unit digit of the squares of the following numbers?
(i) 81
Answer: 1
Explanation Since, 12 ends up having 1 as the digit at unit’s place so 812 will have 1 at unit’s place.
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Meghna Thapar 5 years, 1 month ago
Historically, precious metals were important as currency but are now regarded mainly as investment and industrial commodities. Gold, silver, platinum, and palladium each have an ISO 4217 currency code. The best known precious metals are the coinage metals, which are gold and silver. Though Gold is quite abundant, because of its high popularity it becomes very valuable. ... Another reason due to which gold works well in terms of value is because gold does not readily oxidize thus, it maintains a constant weight. Other metals, such as iron rusts and copper gets oxidized.
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Gaurav Seth 5 years, 1 month ago
डीएनए एक जटिल, लंबा जंजीर जैसा दिखने वाला अणु है जो जीवित जीव की आनुवांशिक विशेषताओं को एन्कोड करता है। अधिकांश पौधों और जानवरों में, डीएनए राइबोन्यूक्लिक एसिड और प्रोटीन के साथ कॉम्पैक्ट (संकुचित) संरचनाओं के रूप पाया जाता है जिसे कोशिका नाभिक (सेल न्यूक्लियस) में रहने वाले गुणसूत्र (क्रोमोसोम्स) कहा जाता है।
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Gaurav Seth 5 years, 1 month ago
हड़प्पा सभ्यता को सिंधु घाटी सभ्यता के रूप में भी जाना जाता है। यह सभ्यता ईसा पूर्व 2600 और 1990 ईसा पूर्व के बीच की है। यह भारत की सबसे पुरानी सभ्यता है। हम उस अवधि के लोगों द्वारा उपयोग किए जाने वाले घरों, गमलों, आभूषणों, औजारों और मुहरों जैसे पुरातात्विक साक्ष्यों से सभ्यता के बारे में जानते हैं।
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Gaurav Seth 5 years, 2 months ago
Q u e s t i o n : किस तरह की चीजों का सबसे ज्यादा नुकसान हुआ ?
उत्तर : अनाज, कपड़ों, जूते - चप्पलों तथा किताबों का सबसे ज्यादा नुकसान हुआ ।
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Jai Jai Ram 5 years, 1 month ago
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Meghna Thapar 5 years, 2 months ago
A hill is a landform that extends above the surrounding terrain. It often has a distinct summit, although in areas with scarp or dip topography a hill may refer to the particular section of flat terrain without a massive summit. A hill is a landform that extends above the surrounding terrain. It often has a distinct summit, in contrast, hillwalkers have tended to regard mountains as peaks 2,000 feet (610 m) above sea level.
Posted by Azra Sultana 3 years, 9 months ago
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