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4.3 Opener

Last updated over 2 years ago

6 questions

The entire bellwork is no calculator 

1

1

1

1

1

1

Question 1

1.

Using cofunctions:

cos33°=

Question 2

2.

Using cofunctions:

cot18°=

Question 3

3.

cos 74° = cos 60° cos 14° +sin 60° sin 14°

True

False

Question 4

4.

cos 70° sin 200° + sin 70° cos 200° = -1

True

False

Problems 5 and 6: 

Using this information, find each of the following: 

Question 5

5.

sin(s+t)=

Question 6

6.

cos(s-t)=