Sum and Difference of Trig Functions 02 Flashcards

1

sin (π/2 - x)

cos x
cos (π/2)
sin x
sin (π/2)

2

cos(π/3)cos(π/4) + sin(π/3)sin(π/4)

cos (π/12)
sin(π/12)
cos (7π/12)
cos(2π/7)

3

A US dollar can be made into change in how many ways?

293
100
364
314

4

Tan(α−β)

(tanα− tanβ)/(1 + tanα⋅tanβ)
(tanα− tanβ)/(1− tanα⋅tanβ)
(tanα + tanβ)/(1− tanα⋅tanβ)
(tanα + tanβ)/(1 + tanα⋅tanβ)

5

sin (x + π)

-sin x
- cos x
sin x
0

6

1 googol = ....?

1099
10100
101000
1010

7

cos(π/2 − x) (Hint: co-function values of complementary angles are equal)

sin x
cos (π/2)
cos x
sin (π/2)

8

cos(α−β)

sinα⋅sinβ − cosα⋅cosβ
sinα⋅cosβ − cosα⋅sinβ
cosα⋅cosβ + sinα⋅sinβ
sinα⋅cosβ + cosα⋅sinβ

9

cos(x +π/2)

sin x
-sin x
cos x
-cos x

10

Sine and Cosine differ by the prefix "co". Where does the "co" come from?

reciprocal
Colorado
complimentary
Together

11

sin(α−β)

sinα⋅cosβ − cosα⋅sinβ
sinα⋅sinβ − cosα⋅cosβ
sinα⋅cosβ + cosα⋅sinβ
sinα⋅sinβ + cosα⋅cosβ

12

tan (75)

(1 + √3)/(√3 - 1)
1/√3
(1 - √3)/(√3 + 1)
√3

13

sin (135^o)

(√2)/2
−(√2)/2
(√2+2)/2
(√2)/2+1

14

cos (π/12)

(√2+√6)/4
(2-√3)/4
(√2-√6)/4
(2+√3)/4

15

The amplitude of this function graph is

2π
0
4
2

Sum and Difference of Trig Functions 02

Questions 15

Sum and Difference of Trig Functions 02

Questions 15