Topic Details (Notes format)

How to Use Basic Identities for Hyperbolic Functions (sinh, cosh, tanh)

Subject: Mathematics

Book: Maths Mastery

Hyperbolic functions share structural similarities with trigonometric functions but revolve around exponential definitions: sinh(x)=(e^x–e^(–x))/2, cosh(x)=(e^x+e^(–x))/2. Identities like cosh²(x)–sinh²(x)=1 hold. Tanh(x)=sinh(x)/cosh(x). These appear in advanced physics (relativity), engineering (structural forms), or math (hyperbolas). For instance, in a suspended cable (catenary shape), y=a cosh(x/a). Recognizing hyperbolic identity parallels fosters easy transitions between trig and hyperbolic problem-solving and deeper expansions in calculus or geometric modeling.

Practice Questions

What is the area of a circle with a diameter of 14 cm?

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The LCM of 12 and 15 is:

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If a:b = 7:9 and b:c = 5:6, what is a:c?

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A man rows downstream at 6 km/h and upstream at 4 km/h. What is the speed of the stream?

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The simple interest on Rs. 4000 at 5% per annum for 2 years is:

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If the perimeter of a square is 40 cm, what is the area of the square?

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If the average of five consecutive odd numbers is 25, what is the largest number?

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If x^2 + 4x + 4 = 0, what is the value of x?

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What is the value of x if 3x + 7 = 16?

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