Trig. By Mark

Sum

50

sin θ

= y/r

100

sin^-1 0

= 0

250

sin^-1(1/2)

= pi/6

400

sec[arctan(-3/5)]

its -3 over 5 btw

= √34/5

500

sin(tan^-1(√3))

= √3/2

Real

50

cos θ

= x/r

100

arccos(-1)

= pi

250

tan^-1(-√3)

= -pi/3

400

cos(arctan 2)

= √5/5

500

cos(tan^-1(-1))

= √2/2

/

50

sec θ

= r/x

100

tan^-1 0

= 0

250

cos^-1(-1/2)

its -1 over 2

= 2pi/3

400

sin(arccos√5/5)

its √5 over 5 btw

= 2√5/5

500

tan^-1(cos(pi))

= -pi/4

B

50

cot θ

= x/y

100

arctan(1)

= pi/4

250

cos^-1(-√3/2)

its -√3 over 2 btw

= 5pi/6

400

sec(arcsin 4/5)

= 5/3

500

cos^-1(sin(pi/6))

= pi/3

S

50

csc θ

= r/y

100

arcsin(1)

= pi/2

250

tan^-1(√3)

= pi/3

400

cos[sin^-1(-3/5)]

its -3 over 5 btw

= 4/5

500

arccos(sin(pi/3)

= pi/6