5. Two right-angled triangles are shown below.23qp1(a) Determine the value of(i) sin p(ii) cos q.(b) Find the exact value of ( )cos p q+ .6. Functions f and g are defined on R by• ( ) 2 5f x x= +• ( ) 2 2g x x x= − .(a) Find an expression for ( )( )f g x .(b) Find an expression for ( )( )g f x .(c) Express ( )( ) ( )( )g f x f g x− in the form ( )2a x b c+ + .123214

(b) Find the exact value of ( )cos p q+ .6. Functions f and g are defined on R by• ( ) 2 5f x x= +• ( ) 2 2g x x x= − .(a) Find an expression for ( )( )f g x .(b) Find an expression for ( )( )g f x .(c) Express ( )( ) ( )( )g f x f g x− in the form ( )2a x b c+ + .123214

Oblique triangles can be solved using the trigonometric functions - sin, cos, and tan.Question 8Select one:TrueFalse

(ii) Convert the products of sine A and cos C into the sum form of trigonometric functions of the triangle above.

1. With respect to a given angle, what is the ratio of the hypotenuse of a right triangle to the opposite side?*A. sineB. cosineC. secantD. cosecant

If the measures of the non-hypotenuse sides of a right triangle are given, we should use Blank 1 Question 12 trigonometric function.