Chapter 7.3 Flashcards
1
Q
Sin(38)-cos(52)
A
Cos(90-38)-cos52
Cos52-cos52
=0
2
Q
4cos(45)-2sin(45)
A
4(\____2/2)-2(\____2/2)
3
Q
6tan(45)-8cos(60)
A
6(1)-8(1/2)
6-4
=2
4
Q
Sin^2(30)+cos^2(60)
A
(1/2)^2+(1/2)^2
1/4+1/4
=1/2