BRIGHT YOUNG BRAINS

SUPER INTENSE but necessary explanation for proving identities

How to leave an answer in surd form, using a reduction formula and compound angles

What to look out for when proving an identity that has squares

Working with double angles and proving an identity

EXERCISE - Reduction formula proving identities question

EXERCISE - Proving an Identity with values and a fraction

EXERCISE - Simplifying fraction trig expression without using a calculator

Simplifying a trig expression with surds

Breaking down a trig expression with double angles in fraction form

Proving an identity with fractions double angles and tan

showing you an important method to breakdown questions

What to look out for when working with an expression that has lot of trig ratios that are squared.

Making use of the difference of 2 squares to simplify a trig expression

Identities question with 4 double angles

How to answer follow up questions from a proven identity

EXERCISE - Using the reduction formulae to simplify without a calculator

Spotting an expression that has compound angles expanded

EXERCISE - Simpifying a trig expression with a fraction under a surd

Introduction to the general solution using an exam question

How to use the quadratic formula to get the general solution of a trig equation

Knowing when to factorize a trig expression to get the general solution

Factorization mixed with a level 4-5 general solution question

EXERCISE - Getting the general solution if the initial expression has a fraction

Learning an Important method to remove trig ratios in a general solution question

Drawing a diagram before answering a set of trig questions

Showcasing the benefits of having a complete diagram to work with

Using 2 sets of information to draw 2 sketches

Using multiple sketches to answer trig questions

Identifying compound angles in a follow up question

Drawing a sketch with a double angle in a specific quadrant

What to do when the given diagram actually has THREE sketches in one image.

Solving follow up questions from more than 2 sketches and determining where a cos graph is defined

NB! Knowing when to use the K360 k E Z part in a trig question

Using your calculator to help you sketch a trig graph

Solving an inequality using trig graphs

Determining the amplitude and equation of a trig graph

Determining the maximum value of a trig graph that has been shifted vertically

Determining the period of a trig graph

Using the general solution method to answer a question about 2 trig graphs

Getting the equation of the asymptote of a tan graph

Determining the equation of a trig graph in terms of another trig graph.

How does moving the y-axis affect the equation of a trig graph

A mixture of an inequality and a reflection about the x-axis

LEVEL 5 Question on getting the maximum value of a trig graph

Finding the first negative x value of the maximum point of a trig graph

EXERCISE- Sketching a graph and solving an inequality

3D triangles question with 2 concentric circles

EXERCISE- Getting the length of 1 side of a triangle

Analyzing a 3D sketch and identifying the horizontal and vertical plane

Identifying when to use basic trigonometry to bank free marks

Proving a level Three 3D triangles trigonometric expression

Proving a level four 3D triangles trig expression

Proving a level 5 trigonometric expression from a 3D sketch

Analyzing a 3D sketch that has four triangles

The Sine rule Explained Extensively

Explaining how and when to use the Area Rule

What to focus on when a 2D sketch has TOO MUCH information given

EXERCISE - Showcasing what you learnt from the Area rule lesson

Calculating the value of x for which the Area of the triangle will be a maximum

EXERCISE - Follow up question on getting the length of one side of a triangle

Analyzing 3 triangles that are on the same vertical plane

EXERCISE - Applying what you have learnt about 3D triangles

Final Exercise with 1 triangle on the horizontal plane and 2 triangles on the vertical plane