Covers the various sections relating to Trigonometry within the Advanced Mathematics programme.
Includes notes from the textbook, as well as additional class, video and research information, diagrams and practice questions.
Applicable to all IEB Grade 12s.
, Radian Measure
Radian measure of an angle is the ratio of the 2 lengths, measures in the same units and is thus
a pure number. (has no unit)
One radian is defined as = the angle subtended at the centre of a circle by an arc equal in
length to the radius of the circle
b
r
θ S
r
a
𝑎𝑟𝑐 𝑙𝑒𝑛𝑔𝑡ℎ 𝑆
θ= 𝑟𝑎𝑑𝑢𝑖𝑠
= 𝑟
S = θr radius
Angle in radians
Arc length
Notations: 1 radian is written as 1 rad
180°
Radian to Degrees: x 𝜋
𝜋
Degrees to Radian: x 180°
tan θ and cos θ and
cot θ are sec θ are
positive positive
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller KirstenBarbour. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $2.81. You're not tied to anything after your purchase.
