# Trigonometry Hong Kong — Trigonometry

> Trigonometric formulas for Hong Kong university entrance exams. (iPhone/iPad app by See Yan Wong.)

- Source: https://appshunter.io/ios/app/trigonometry-hong-kong/id1557131849 (this page in markdown: same URL + `.md`)
- Developer: [See Yan Wong](https://appshunter.io/developer/1453422332)
- Category: Education
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 14.1 · 4 MB
- Languages: English
- Released: 2021-03-08
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/trigonometry-hong-kong/id1557131849/reviews.md

## What is Trigonometry Hong Kong?

Trigonometric Compound Angle formulas used in the public examination for the entrance of the universities in Hong Kong.
Contents :-
1. Sine Formula
2. Cosine Formula
3. Tangent Formula
4. Compound Angle Formula
5. Subsidiary Angle Formula
6. Double Angle Formula
7. Triple Angle Formula
8. Half Angle Formula
9. T Formula
10. Product-To- Sum Formula
11. Sum-To- Product Formula
12. Principal Value
13. General solution For Trigonometric Functions

## Key features

- Compound Angle Formulas
- Subsidiary Angle Formulas
- Double Angle Formulas
- Triple Angle Formulas
- Half Angle Formulas
- Product-To-Sum Formulas
- Sum-To-Product Formulas


## Frequently asked questions about Trigonometry Hong Kong

### What trigonometric formulas does Trigonometry Hong Kong cover?

Trigonometry Hong Kong covers a wide array of formulas including Sine, Cosine, Tangent, Compound Angle, Subsidiary Angle, Double Angle, Triple Angle, Half Angle, T Formula, Product-To-Sum, and Sum-To-Product formulas. It also includes Principal Value and General solution for Trigonometric Functions.

### Is Trigonometry Hong Kong suitable for offline use?

The provided data does not specify offline functionality. However, as a reference tool for formulas, it is likely designed for quick access to information, which is often beneficial offline.

### What is the learning methodology of Trigonometry Hong Kong?

This application functions as a reference guide, presenting trigonometric formulas clearly. Its methodology is to provide direct access to the necessary formulas for study and exam preparation, rather than interactive lessons.

### How does Trigonometry Hong Kong track user progress?

Trigonometry Hong Kong is a formula reference tool and does not include features for tracking user progress or interactive learning modules.

### Does Trigonometry Hong Kong offer certifications?

No, Trigonometry Hong Kong is a reference application for trigonometric formulas and does not offer any certifications upon completion of study.

### What devices is Trigonometry Hong Kong available on?

Trigonometry Hong Kong is available on iPhone and iPod devices, as indicated by the supported devices list.

### How often is Trigonometry Hong Kong updated?

Trigonometry Hong Kong was last updated on March 8, 2021, with version 1.0. Further update frequency information is not available in the provided data.

### Does Trigonometry Hong Kong have ads?

No, Trigonometry Hong Kong does not contain advertisements, as indicated by the 'hasAds' flag being false.

## Version history (last 1 release)

### 1.0 — 2021-03-08

No release notes.

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## More apps by See Yan Wong

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All apps by See Yan Wong: https://appshunter.io/developer/1453422332

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*