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Trigonometric Functions ; sec ⁡ θ, Secant function, sec 2 ⁡ θ = tan 2 ⁡ θ + 1 ; cot ⁡ θ, Cotangent function, cot ⁡ θ = cos ⁡ θ sin ⁡ θ ; arcsin ⁡ x, sin − 1 ⁡ x. Build a strong foundation & nurture interest in the learning of high-level mathematical processes as your child enters secondary school. Get started today. In this case, we use another Pythagorean identity 1+tan2u=sec2u. (which we can get from the usual one cos2u+sin2u=1 by dividing by cos2u).

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In this case, we use another Pythagorean identity 1+tan2u=sec2u. (which we can get from the usual one cos2u+sin2u=1 by dividing by cos2u). Mathematics SEC Available in September (Paper I and Paper IIB only). Syllabus. Paper I: Section A (20 minutes) & Section B (1 hr 40 minutes) + Paper II. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations.