\text { Solve } 1-\cos \left(\frac{x}{2}\right)=\cos \left(\frac{x}{2}\right) \text { for } x \in[-2 \pi, \pi]

If you answer “no”, it is now time to improve your Maths Methods knowledge and skills up to the VCE level.

But,

where to start??

Fortunately, education experts from A+ Pal developed A+ VCE Maths Methods Study Guide in a well-ordered and easy-to-digest contents.

Plus, it covers everything you need to conquer VCE MM exam, even Bound Reference ready!

Included in your MM Study Guide:

• Comprehensive and easy-to-digest Master Notes for your daily school study support
• Summary Notes covering all VCE required topics for your quick and accurate reference in the exam preparation and the exam itself
• Question Skill Notes so you will have step-by-step hands-on guide when solving problems during VCE exam

Still hesitated? No worries. Let’s take a look at the solution for the above trigonometric question first

Gives \cos \left(\frac{x}{2}\right)=\frac{1}{2}.

From special values gives \frac{x}{2}=\frac{\pi}{3}.

\cos \left(-\frac{x}{2}\right)=\frac{1}{2}, so -\frac{x}{2}=\frac{\pi}{3}.

Gives \frac{x}{2}=\frac{\pi}{3}+2 n \pi, x=\frac{2 \pi}{3}+4 n \pi. The other one gives x=-\frac{2 \pi}{3}+4 n \pi

We have: x=\pm \frac{2 \pi}{3}+4 n \pi, n \in Z.

Which is x=-\frac{2 \pi}{3}, \frac{2 \pi}{3}.

Cut the hassle, Save the time and Start your Maths Methods A+ journey today!

As an experienced education service provider teamed with high ATAR scorers, Maths Olympiad champions and education experts,

we understand what students demand.

Best Scores = Smart Study + Crush Exam

Crack exam in last minute may get your good result, but certainly won’t get your best scores.

To help students adopt smart study and consolidate school studies everyday, we developed A+ Master Notes.

A+ MM Master Notes cover all fields required by VCE Maths Methods, can be used in everyday review as well as combination with A+ MM Crush Exam.

Accessing A+ MM Master Notes is easy, via –

All you need is to click subscribe button and become an A+ MM Master Notes member.

Subscribe to A+ Maths Methods Master Notes Today

Let’s start your A+ journey right here! and enjoy member prices for A+ Maths Methods Crush Exam and other study resources.

For the above cosine question, students can easily find trigonometry related knowledge and tutorials required by VCE in A+ MM Master Notes. Take a quick glimpse at some examples.

<<<<<<<<<<<<<<<<<<<<

Designed for VCE exam takers wanting guided instructions and desiring the highest score increase.

A+ Pal implements grab-apply strategy and developed A+ MM Crush Exam with unique Question-Solving structure.

Universal steps are provided for VCE required topics. These concise steps are clear to understand and importantly easy to apply in maths exams.

Exclusive Membership Rights – Fast Track A+ QnA Service

Being an A+ MM Master Notes member, you will have free access to QnA Share & Ask Service without share.

You can submit it immediately when you have a maths question.

Our experienced maths tutor will skip the sharing confirmation step and work on your question directly.

You will have A+ reply much quicker.

Why to wait when you can start right away??

With less than \$2 a week, you will have

• full Maths Methods Master Notes, assisting your daily Maths Methods studies