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Introduction The tangent is one of the three basic trigonometric functions, the other two being sine and cosine. These functions are essential to the study of triangles and relate the angles of the triangle to its sides. The simplest definition of the tangent uses the ratios of the sides of a right triangle, and modern […]
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A. Oral English: The Falling and Rising Tone Intonation is the music of the voice. As we speak, our voices are constantly changing from one pitch to another. Intonation often tells us more about the feelings and attitude of the speaker than the actual words they choose. Below, the word ‘really’ shows the different attitudes
1. The Zebra is a large species of equine that is found roaming the grassy plains of sub-Saharan Africa. 2. They are the largest and most distinctive wild horses with bodies that are patterned with white and black stripes, the exact placement of which is unique to each individual. 3. There are three different species of Zebra that
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Newton’s First Law of Motion – Idea of Inertia States that object continues in its states of rest or uniform motion in a straight line unless an external force acts on it. It is a common experience that a body at rest will remain at rest. For example, a book at rest on top of
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Mars is the fourth planet from the Sun and the second smallest planet in the Solar System, after Mercury. Named after the Roman god of war, it is often referred to as the “Red Planet” because the iron oxide prevalent on its surface gives it a reddish appearance. Mars is a terrestrial planet with a thin
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It was set as a maths problem, aimed at testing the logical reasoning skills of 14-year-olds in Singapore. But the question went viral after people across the world were left completely baffled. The problem, which tests logical reasoning, has been shared thousands of times online as people have tried to pose their best explanations of
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1. The Blue Whale is an enormous species of whale that is found in subtropical and polar waters worldwide. Blue whales are the largest animals ever known to have lived on Earth. Just one breath from a fully grown adult Blue Whale will produce enough air to fill nearly 2,000 balloons! 2. These magnificent marine mammals rule the oceans
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ALKYNES An alkyne is a molecule made up entirely of carbon and hydrogen where on or more carbon atoms are connected by triple bonds. The general formula for an alkyne is CnH2n-2 where n is the number of carbon atoms in the molecule. Alkynes are named by adding the the -yne suffix to the prefix
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1. Argentina is named after a fabled mountain made of silver and it is the only nation on Earth to be named after a metal. The name “Argentina” is derived from Latin argentum (“silver”) as the nation was once believed to possess silver mountains. 2. Argentina is the eighth-largest country in the world and the second largest
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1. A member of the boa family, South America’s green anaconda is, pound for pound, the largest snake in the world. 2. Green anacondas can grow to more than 29 feet (8.8 meters), weigh more than 550 pounds (227 kilograms), and measure more than 12 inches (30 centimeters) in diameter. Related Post: 10 Amazing Animal Facts (Bat) 3. Anacondas
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