Mindblown: a blog about philosophy.
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What are Reciprocal Identities?
The reciprocals of the six fundamental trigonometric functions (sine, cosine, tangent, secant, cosecant, cotangent) are called reciprocal identities. The reciprocal identities are important trigonometric identities that are used to solve various problems in trigonometry. Each trigonometric function is a reciprocal of another trigonometric function. The sine function is the reciprocal of the cosecant function and vice-versa; the cosine function is the reciprocal…
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Reciprocal Identities
Reciprocal Identities are the reciprocals of the six main trigonometric functions, namely sine, cosine, tangent, cotangent, secant, cosecant. The important thing to note is that reciprocal identities are not the same as the inverse trigonometric functions. Every fundamental trigonometric function is a reciprocal of another trigonometric function. For example, cosecant is the reciprocal identity of the…
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Even and Odd Trigonometric Functions
The trigonometric function can be described as being even or odd. Odd trigonometric functions: A trigonometric function is said to be an odd function if f(-x) = -f(x) and symmetric with respect to the origin. Even trigonometric functions: A trigonometric function is said to be an even function, if f(-x) = f(x) and symmetric to the y-axis.…
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Using the Tangent Formula
(the TOA formula) Tangent = Opposite over Adjacent
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Using the Cosine Formula
(the CAH formula) Cosine = Adjacent over Hypotenuse
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Using the Sine Formula
(the SOH formula) The first part of this video will explain the difference between the hypotenuse, adjacent and opposite sides of a right triangle. Then it shows how to use the sine formula (the SOH formula). Sine = Opposite over the Hypotenuse
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SOH-CAH-TOA
The following diagram show how to use SOHCAHTOA for a right triangle. How to identify the Opposite Sides, Adjacent Sides and Hypotenuse of a Right Triangle? Definition of Cos, Sin, Tan, Csc, Sec, Cot for the right trianglesin x = opposite/hypotenusecos x = adjacent/hypotenusetan x = opposite/adjacentcsc x = 1/sin x = hypotenuse/oppositesec x =…
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Sides Of A Right Triangle
Hypotenuse, Adjacent and Opposite Sides. In the following right triangle PQR, the side PQ, which is opposite to the right angle PRQ is called the hypotenuse. The hypotenuse is the longest side of the right triangle. the side RQ is called the adjacent side of angle θ. the side PR is called the opposite side of angle θ. Note: The adjacent…
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Paracetamol
What is paracetamol? Paracetamol (Panadol, Calpol, Alvedon) is an analgesic and antipyretic drug that is used to temporarily relieve mild-to-moderate pain and fever. It is commonly included as an ingredient in cold and flu medications and is also used on its own. Paracetamol is exactly the same drug as acetaminophen (Tylenol). Paracetamol is the drug’s…
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Levofloxacin
What is levofloxacin? Levofloxacin is an antibiotic that that may be used to treat different types of bacterial infections. Levofloxacin may also be used to treat people who have been exposed to anthrax or certain types of plague. Levofloxacin is usually only used for bacterial infections that cannot be treated with safer antibiotics. This is because levofloxacin is…
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