A Maths Tuition

Basic Trigo Trigo Equations Part I Trigo Equations Part II Trigo Equations Part III Trigo Equations Part IV R formula Part I R formula Part II Proving Trigo identities Part I Proving Trigo identities Part II Proving Trigo identities Part III Proving Trigo identities Part IV

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This question involves the use of rationalization to prove trigo identites Rationalization is a commonly used technique in surds. Click here to check out how rationalization is used in surds. Question 1 Whats Next? Click here for Proving trigo identities Part IV Click here for Contents Page

Question 1 My friend came up with another way of proving the above identity Question 2 What's Next? Click here for Proving trigo identities Part III Click here for Contents Page

Strategy Choose the more complicated side to start Keep in mind what you are trying to prove Question 1 Show that: Solution:  Question 2 Show that The more complicated side is LHS What's Next? Click here for Proving trigo identities Part II Click here for Contents Page

Equations that contain only sin x and cos x Strategy: Divide by cos x  to obtain tan x This type of equation has to be solved using the R formula . What's Next ? Click here to learn how to trigo equations using the R formula Click here to learn how to prove trigo identities Click here for Contents Page

Factorization to obtain basic type Question 1 Use of idenity followed by factorization Question 2 Question 3 What's Next? Click here for Trigo Equations Part IV Click here for Contents Page

ABCD is a quadrilateral where AB = 2 cm and BC = 4cm. Angles BAD and BCD each equals to θ a) Express the length of AD in terms of θ b) Determine the maximum length of AD and the corresponding value of θ c) Find the value of θ for which AD= 3cm Worked solutions a) b) c) Given AD = 3 cm What's Next? Click here for Contents Page