Page 7 - Trigonometry

Express these in terms of your calculator notation,

then let = and = . Make sure your calculator
is in DEG mode (q(SETUP)3). The keystrokes for

Eq:4 and Eq:5 combined are,

q?Q(A)aQ(B)$)Q(:)sJ

(A)d+J(B)d

1. Express the following in R notation

4 sin( ) + 3 cos( )

r

A? 4=

B? 3=
x =

Leaving,

′
4 sin( ) + 3 cos( ) = 5 cos( − 53 7 . 37")

2. Express the following in R notation,

3.68 sin( ) + 6.49 cos( )

r

3