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jefgreen
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I'm not sure how to find the least common denominator when given these formulas:
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Daft said:The LCM is 36, but its not 1/36+1/36+1/36
is 1/9 = 1/36?
is 1/4 = 1/36?
is 1/12 = 1/36?
The mirror/lens equation is a mathematical formula that describes the relationship between the distance of an object from a curved mirror or lens, the distance of the image from the mirror or lens, and the focal length of the mirror or lens. It is given by the formula 1/o + 1/i = 1/f, where o is the distance of the object from the mirror or lens, i is the distance of the image from the mirror or lens, and f is the focal length.
The mirror/lens equation is used in various applications, such as in designing and constructing optical instruments like telescopes, microscopes, and cameras. It is also used in everyday life, such as in adjusting the position of a mirror to get a clear reflection or in choosing the correct lens for glasses or contact lenses.
A concave mirror or lens curves inward and is thicker in the center than at the edges. It is able to produce both real and virtual images depending on the location of the object. On the other hand, a convex mirror or lens curves outward and is thinner in the center than at the edges. It can only produce virtual images that are always upright and smaller than the object.
The formula for calculating equivalent resistance in parallel circuits is 1/Re = 1/R1 + 1/R2 + ... + 1/Rn, where Re is the equivalent resistance and R1, R2, ..., Rn are the individual resistances in parallel. This formula takes into account the inverse relationship between resistance and current flow in parallel circuits.
The concept of equivalent resistance is used in designing and analyzing complex electrical circuits. By calculating the equivalent resistance, engineers and scientists can determine the overall resistance and current flow in a circuit, which is necessary for proper functioning and safety considerations. It is also used in troubleshooting and repairing electrical systems.