WGU course completion
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D889 Trigonometry (MATH 2110, 3 CUs in the September 2026 WGU catalog) is the third math gate of the secondary mathematics education path, scheduled in term 4 of both the B.S. Mathematics Education (Secondary) and its Educational Studies counterpart, one term behind D667 Precalculus, with the catalog stating no prerequisites. Sine, cosine, and tangent ratios through the unit circle, identities, trigonometric equations, vectors, and parametric and polar forms. Coursework Ninja completes D889 done-for-you, fixed quote in writing first. From $99. Independent of WGU.
Per WGU's published description, D889 delves into the core concepts and applications of trigonometric functions and identities: the definition and calculation of sine, cosine, and tangent ratios, solving right triangles, and applying trigonometric functions to model real-world periodic phenomena, then the unit circle, fundamental identities, and complex trigonometric equations, including applications of vectors, parametric, and polar forms. The catalog states that no prerequisites are required, which is exactly what makes the course dangerous: it admits students whose last algebra class was two terms or two decades ago.
Two catalog tables carry D889, both at term 4: the B.S. Mathematics Education (Secondary) and the B.A. Educational Studies in Secondary Mathematics Education. The ladder in front of it runs C278 College Algebra in term 2 and D667 Precalculus in term 3, and the ladder behind it runs into D890 Calculus I in term 5, so a slipped trigonometry row moves every math course after it by a full term, and the term is the unit WGU bills. Message us the code and where you stand, and we quote a flat price in writing.
Every full package includes the written 6-month guarantee: we finish the remaining CUs under the agreed plan, or you do not pay. Packages: Bachelor's $3,000 · Master's $3,500 · both $5,500 · single assessments from $99.
Coverage
WGU does not publish assessment formats in the catalog. Student communities report a proctored objective assessment (OA) for the trigonometry course, consistent with the exam pattern of the algebra and precalculus gates in front of it. We confirm the current format for your catalog year at intake, and the fixed quote covers whichever assessment D889 carries.
The description's foundation: the definition and calculation of sine, cosine, and tangent ratios, and solving right triangles. Everything later in the course grades whether these stay automatic under exam pressure.
The applied row of the description: applying trigonometric functions to model real-world periodic phenomena. Exam items wrap the same functions in waves, cycles, and circular motion, and students who memorized only the triangle meet the course a second time here.
The theoretical core: the unit circle and deriving fundamental identities. Calculator habits stop helping here, because the scored work asks for exact values and derivations, not decimals.
The far end of the description: solving complex trigonometric equations, including applications of vectors, parametric, and polar forms. These topics feed the calculus sequence directly, so a weak clear here keeps costing points two courses later.
D889 alone is a single from $99. On a remaining list in either secondary math education table it folds into the flat bachelor's package at $3,000, every remaining academic CU under the written 6-month finish guarantee.
Stuck on one of these right now?
Send the course code on Telegram or WhatsApp. Single-course completions start at $99 with a fixed quote in writing before any work begins.
Bottlenecks
D889 is the course career-switchers fear most on the math education path: no prerequisites on paper, a full trigonometry assessment in practice. These are the stalls we take over most often.
Only need one course finished? Single OA / PA / CU completion starts at $99. Message us the course code for a fixed quote. See full package pricing.
Per the September 2026 WGU institutional catalog, Trigonometry (MATH 2110, 3 CUs) covers the definition and calculation of sine, cosine, and tangent ratios, solving right triangles, applying trigonometric functions to model real-world periodic phenomena, the unit circle, fundamental identities, and complex trigonometric equations, including applications of vectors, parametric, and polar forms. The catalog states that no prerequisites are required.
Per the current catalog, 2 tables, both at term 4: the B.S. Mathematics Education (Secondary) and the B.A. Educational Studies in Secondary Mathematics Education. On that path D889 follows C278 College Algebra in term 2 and D667 Precalculus in term 3, with the calculus sequence behind it.
WGU does not publish assessment formats in the catalog. Student communities report a proctored objective assessment (OA) for the trigonometry course, consistent with the exam pattern of the math gates around it. We confirm the current format for your exact catalog year at intake, and the fixed quote covers whichever assessment the course carries.
Yes. The September 2026 catalog states that no prerequisites are required for this course. In practice the course assumes the algebra and precalculus material of C278 and D667, which sit one and two terms in front of it on the same program tables, so the formal door is open while the material ladder is real.
D667 Precalculus surveys functions, trigonometry, systems of equations, analytic geometry, and sequences and series in one 4-CU course that prepares for calculus. D889 is the dedicated 3-CU trigonometry course: the unit circle, identities, and trigonometric equations at full depth, plus the vectors, parametric, and polar forms that precalculus only introduces.
One course starts at $99, with the exact figure fixed in writing once we know where you stand. If D889 is one row on a longer remaining bachelor's list, the bachelor's package is $3,000 flat with the written 6-month finish guarantee covering every academic course on the plan.
Yes. The licensed-teacher M.A. Mathematics Education tracks run this material as one course: C647 Trigonometry and Precalculus (MATH 6321, 2 CUs), term 1 of both the Middle Grades and Secondary tracks. Where the bachelor's path gives you two courses and two terms, D667 and D889, the graduate track compresses both into a single 2-CU course, and it has its own completion page under /courses.
No. We are an independent paid completion service, not affiliated with, endorsed by, or sponsored by Western Governors University. WGU provides its own instructors, mentors, and evaluators; Coursework Ninja is separate, for students who want this course finished on a fixed date.
Coursework Ninja is an independent done-for-you degree completion service and is not affiliated with, endorsed by, or sponsored by Western Governors University.
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