Trig Functions Of Acute Angles Worksheet Page 3
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16As θ increases -- sin θ increases
which means the opposite is true for cosθ
As θ increases -- tan θ increases
which means the opposite is true for cotθ
As ϴ increases -- sec θ increases
which means the opposite for cscθ
All the
Cofunctions
have smaller values as their angles get bigger.
Ex4: Comparing Function Values of Acute Angles
Determine if the following are
true
of
false.
1)
sin 21 > sin 18
2) sec 56 ≤ sec 49
3) tan 25 < tan 23
4)
csc 44 < csc 40
5) cot 32 > cot 23
6) cos 15 < cos 20
Special right triangles: 30-60-90 and 45-45-90
The 30-60-90 triangle is half of an equilateral and the 45-45-90 is half of a square.
Solve for a,b,c,and d. Do not use decimals for any values.
Chapter 2 Page 3
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