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

What is the square root of 0.25?

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What is the length of the diagonal of a square with a side length of 7 cm?

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

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If the sum of the squares of two consecutive positive integers is 365, what are the integers?

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If 2a + b = 10 and a - b = 4, what is the value of a?

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If sin(A) = 3/5 and cos(B) = 5/13, where A and B are acute angles, what is sin(A+B)?

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What is the square root of 144?

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If x:y = 2:3 and z:y = 4:3, what is x:z?

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If the angles of a triangle are in the ratio 2:3:4, what is the measure of the largest angle?

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If the perimeter of a square is 36 cm, what is the length of its diagonal?

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