Intro to Trig

Fractions

100

((2a)/b)(3b)

6a

200

3/5+1/(3x)

(9x+5)/(15x)

300

2/a+3/b

(2b+3a)/(ab)

400

(2a)/b+(3c)/a+(4b)/c

(2a^2c+3bc^2+4ab^2)/(abc)

500

((2a)/7)(7/(2a))+4a-6

4a-5

It's all-right

100

Find the sine function given

cos(theta)=6/7

sin(theta)=sqrt(13)/7

200

Find the cotangent trig function

sec(theta)=9/5

cot(theta)=(5sqrt(14))/28

300

Find x

tan(57)=10/x

6.5

400

Find the angle to the nearest tenth of a degree

costheta=21/30

45.6^o

500

Find all six trig functions given

tantheta=3

sintheta=(3sqrt(10))/10

costheta=(sqrt(10))/10

csctheta=sqrt(10)/3

sectheta=sqrt10

cottheta=1/3

Units

100

What is the radian measure of a 135^o angle?

(3pi)/4

200

What is the point on the unit circle at 150^o?

(-sqrt3/2,1/2)

300

What is the positive degree measure of the angle

-pi/4

315^o

400

What is the tangent of

(3pi)/2

undefined

500

Give all information in the first quadrant of the unit circle.

See posted unit circle in room for answer

Arcs

100

What is the arc length (in terms of pi) given a radius of 2.5m and the angle of 

pi/6

(5pi)/12

200

What is the formula for arc length if the angle is given in degrees?

s=(pi/180)(r)(theta)

300

Give one positive and one negative coterminal angle

(3pi)/2

(7pi)/2 , -pi/2

400

What is the area of an arc with radius of 18 feet and an angle of 177^o? (Round to the nearest tenth)

500.5 ft²

500

What is the radian measure of an angle that is 56^o?

(14pi)/45

Exactly

100

Give the value of 

sin(150^o)

1/2

200

Give the value of

cos(pi/2)

0

300

What is the value of

sin(4pi)

0

400

What is the value of 

cos(-pi/3)

1/2

500

What is the value of 

cos((33pi)/4)

sqrt2/2