Trig

Question 1

what is the trigonometric identity

Answer 1

TanΘ=sinΘ/casΘ

Question 2

What is the Pythagorean identity?

Answer 2

cos²Θ+sin²Θ=1

Question 3

What are the double angle formulae (sin)

Answer 3

sin2Θ=2sinΘcosΘ

Question 4

What are the double angle formulae (cos)

Answer 4

cos2Θ = cos²Θ - sin²Θ
(which also equals to)
2cos²Θ - 1 = 1 - 2sin²Θ

Question 5

cos0 (radians)

Answer 5

=π/2 (90°)

Question 6

cos1/2 (radians)

Answer 6

=π/3 (60°)

Question 7

cos√2 / 2

Answer 7

=π/4 (45°)

Question 8

cos√3 / 2

Answer 8

=π/6

Question 9

cos1

Answer 9

0 (0°)

Question 10

sin1

Answer 10

π/2 (90°)

Question 11

sin√3 / 2

Answer 11

=π/3 (60°)

Question 12

sin√2 / 2

Answer 12

π/4 (45°)

Question 13

sin1/2

Answer 13

=π/6 (30°)

Question 14

sin0

Answer 14

0 (0°)

Question 15

g(x)=?

Answer 15

f(x)=acosb(x-c)+d
A - affects the y, stretches / compresses (timesing by 2 makes it longer)
B - affects the x, stretches / compresses (timesing by 2 makes it more compressed)
C - affects the x, its inverted but note that this negatative which which just goes and throws it in for a loop, like cmon man, just have it be inverted)
d - transposes it in the y direction