T

F

sin^2 θ - cos^2 θ = 1

sin^2 θ + 1 = cos^2 θ

sin^2 θ + cos^2 θ = -1

sin^2 θ = 1 - cos^2 θ

tan^2 θ + 1 = cot^2 θ

tan^2 θ + 1 = cosec^2 θ

tan^2 θ + 1 = sec^2 θ

tan^2 θ + sec^2 θ = 1

cot^2 θ + 1 = tan^2 θ

cot^2 θ + 1 = cosec^2 θ

cot^2 θ + 1 = sec^2 θ

cot^2 θ - 1 = tan^2 θ

sin(x)cos(x) + sin(y)cos(y)

sin(x)sin(y) + cos(x)cos(y)

sin(x)cos(y) + sin(y)cos(x)

sin(x)cos(x) - sin(y)cos(y)

2 sin(x)cos(x)

sin(x)^2 cos(x)^2

1/2 sin(x) cos(x)

None of these

sin(x)

cos(x)

-sin(x)

-cos(x)

even

odd

origin point

y-axis

cos(x)sin(y) + cos(y)sin(x)

cos(x)cos(y) + sin(x)sin(y)

cos(x)sin(y) - cos(y)sin(x)

cos(x)cos(y) - sin(x)sin(y)

cos^2 x - sin^2 x

2cos^2 x - 1

1 - 2sin^2 x

All of the above

cos(x)

-cos(x)

sin(x)

-sin(x)

even

odd

origin point

y-axis

tan(x)+tan(y) / 1-tan(x)tan(y)

tan(x)-tan(y) / 1-tan(x)tan(y)

tan(x)+tan(y) / 1+tan(x)tan(y)

tan(x)-tan(y) / 1+tan(x)tan(y)

2 tan(x)/ 1-tan^2(x)

tan(x)/ 1-tan^2(x)

tan(x)/ 2-tan^2(x)

2 tan(x)/ 1+tan^2(x)

tan(x)

-tan(x)

cot(x)

cot(-x)

R+

R

R - {0}

R+ - {1}

R

R+

R-

R-{0}

R

R+

R-

R-{0}

0

1

a