Week 2

Question 1

secant

Answer 1

hypotnuse/adj

Question 2

cosecant

Answer 2

hyp/opp

Question 3

cotangent

Answer 3

adj/opp

Question 4

trig functions are…?

Answer 4

FUNCTIONS
you plug in angles and they spit out fractions
they must have arguments

Question 5

pythagorean triplet

Answer 5

a triangle consisting of 3 positive integers (a,b,c) such that a^2 + b^2 = c^2

Question 6

cosecant reciprocal identity

Answer 6

1/sin of theta

Question 7

secant reciprocal identity

Answer 7

1/cos of theta

Question 8

cotangent reciprocal identity

Answer 8

1/tan of theta

Question 9

tangent identity

Answer 9

tan = sin/cos

Question 10

pythagorean identity 1

Answer 10

sin^2theta + cos^2theta = 1
*sint^2theta = (sin theta)^2

Question 11

pythagorean identity 2

Answer 11

tan^2theta + 1 = sec^2theta
1 + cot^2theta = csc^2theta

Question 12

cofunction identities

Answer 12

sin theta = cos (90 - theta)
sec theta = csc (90 - theta)
etc.
*identities also apply in reverse

Question 13

cotangent reciprocal identity 2

Answer 13

cos/sin

Question 14

30-60-90 triangle

Answer 14

30 - 1
60 - root 3
90 - 2

Question 15

cos 30 is?

Answer 15

root 3/2
sin 60

Question 16

sin 30 is?

Answer 16

1/2
cos 60

Question 17

tan 45 is?

Answer 17

1

Question 18

45-45-90 triangle

Answer 18

1-1-root 2
root2/2 - root2/2 - 1

Question 19

ASTC

Answer 19

all students take calculus
q1 - all positive
q2 - sin positive
q3 - tan positive
q4 - cos positive