Unit 6 Test Review

Write the numbers 1 to 10 on a blank piece of paper.

Instructions

There are 10 multiple choice questions.

Do not copy out the questions just do them.

The questions and answers are available on classnet.

Try to do the questions before you look at the possible answers.

There will be no multiple choice questions on the real test but these questions represent many of the types of questions that could appear on the test.

1) Would you use Sin Law, Cos Law or SOH CAH TOA?

a) Sin Law

b) Cos Law

c) Right Angle Trig

d) Cos Law then Sin Law

e) Sin Law then Cos Law

2) What formula should you use?

a) Sin Law

b) Cos Law

c) SOH CAH TOA

d) Pythagorean Theorem

e) All of the above

3) What is the value of angle C?

a) 10.50

b) 97.30

c) 900

d) 82.70

e) 620

4) What is the value of angle B?

a) 15.70

b) 36.00

c) 36.80

d) 73.20

e) 70.00

5) Will there be questions on the test where you have to draw the diagram?

a) Yes, every question will require this.

b) No, it is too hard so it won’t be on the test.

c) Maybe, depends on if you get version A or B of the test

d) No, every diagram will be drawn for me.

e) Yes, but there will also be questions where the diagram is provided.

6) What is the exact value of cos(210) ?

a) -0.866024503

b)

c)

d)

e)

7) Determine the exact value of

a)

b)

c) 2.292893219

d)

e) Both a and d

8) Determine the value of x using exact values. (Don’t use your calculator)

a)

b) 2

c)

d)

e)

9) Solve if

a)

b) 120 , 240

c)

d)

e) 60, 120, 240, 300

10) Which identities do I have to know and be able to use to prove other identities?

a)

b)

c)

d)

e) All of the above

Unit 6 Test ReviewANSWERS

1) Would you use Sin Law, Cos Law or SOH CAH TOA?

a) Sin Law

b) Cos Law

c) Right Angle Trig

d) Cos Law then Sin Law

e) Sin Law then Cos Law

sin 65𝑥

=sin 8510

85

2) What formula should you use?

a) Sin Law

b) Cos Law

c) SOH CAH TOA

d) Pythagorean Theorem

e) All of the above

sin 𝐴=610

3) What is the value of angle C?

a) 10.50

b) 97.30

c) 900

d) 82.70

e) 620

cos𝐶=¿ 252−152−222

−2(15)(22)¿

252=152+222−2 (15 ) (22 )cos𝐶

𝐶=cos−1( −84−660 )𝐶=82.7

4) What is the value of angle B?

a) 15.70

b) 36.00

c) 36.80

d) 73.20

e) 70.00

𝑎2=102+162−2 (10 ) (16 )cos 70𝑎2=246.55……….𝑎=15.7

15.7

sin 7015.7

=sin𝐵10

𝐵=𝑠𝑖𝑛− 1( 10sin 7015.7 )❑𝐵=36.8

5) Will there be questions on the test where you have to draw the diagram?

a) Yes, every question will require this.

b) No, it is too hard so it won’t be on the test.

c) Maybe, depends on if you get version A or B of the test

d) No, every diagram will be drawn for me.

e) Yes, but there will also be questions where the diagram is provided.

6) What is the exact value of cos(210) ?

a) -0.866024503

b)

c)

d)

e)

2100

300

12

√𝟑

cos is and is negative in quad 3

7) Determine the exact value of

a)

b)

c) 2.292893219

d)

e) Both a and d

¿ (√3 )2− 1

√2

¿3−1

√2

¿ 3√2√2

−1√2

¿ 3√2−1√2

You have to be able to simplify exact values.

8) Determine the value of x use exact values. (Don’t use your calculator)

a)

b) 2

c)

d)

e)

cos𝜃=𝐴𝐻

cos 30=8𝑥

√32

¿ 8𝑥

√3 𝑥=(2)(8)

𝑥=16

√3

a)

b) 120 , 240

c)

d)

e) 60, 120, 240, 300

9) Solve if

Solution on next slide

9) Solve if

cos (2𝑥 )=−12

cos (𝜃 )=−12

𝜃 𝜃

1

2600

600

θ=120 θ=2402 𝑥=120 2 𝑥=240𝑥=60 𝑥=120

𝑝𝑒𝑟𝑖𝑜𝑑=180

𝑥=60+180 𝑥=120+180𝑥=240 𝑥=300

10) Which identities do I have to know and be able to use to prove other identities?

a)

b)

c)

d)

e) All of the aboveYou will (most likely) have seen the identities you have to prove before.

This slide show is on Classnet

You should review the questions you got wrong before the test.

These questions are a good sample of the types of questions on the test.

There are NO MULTIPLE CHOICE questions on the test.