Fundamental Trigonometric Identities
Which of the following expressions is equal to 1?
A
sin2 (x) - cos2
B
2sin(x) + 2cos(x)
C
sin2 (x) + cos2 (x)
D
sin(x) + cos(x)
E
sin(x) - cos(x)
clep.ai501(c)(3) non-profit • UBI: 606234803 • EIN: 42-2740810clep.ai501(c)(3) non-profit • UBI: 606234803 • EIN: 42-2740810sin2 (x) - cos2
2sin(x) + 2cos(x)
sin2 (x) + cos2 (x)
sin(x) + cos(x)
sin(x) - cos(x)