Topic Details (Notes format)

How to Graph Trig Functions (Sine, Cosine, Tangent)

Subject: Mathematics

Book: Maths Mastery

Sine and cosine graphs oscillate with amplitude (|A|), period (2π/B), phase shift (C/B), and vertical shift D in y=A sin(Bx–C)+D. For instance, y=2 sin(x–π/2) shifts the standard sin curve right by π/2 and doubles its amplitude. Tangent has vertical asymptotes and repeats every π/B. Graphing these accurately is vital for modeling waves, seasonal cycles, or repeating phenomena. Understanding transformations allows real-life data fitting (harmonic motion, sound waves) and deeper insights into cyclical patterns that shape advanced math or scientific analyses.

Practice Questions

If x^2 - 6x + 9 = 0, what is the value of x?

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What is the HCF of 72 and 120?

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The sum of the reciprocals of two numbers is 1/4. If one number is 12, what is the other?

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A sum of money doubles itself in 5 years at simple interest. What is the rate of interest?

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The perimeter of a rectangle is 50 cm, and its length is 15 cm. What is its width?

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If log(100) = 2 and log(10) = 1, what is log(1000)?

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What is the sum of the first 20 odd numbers?

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