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4.3 Opener

Last updated over 2 years ago
6 questions
The entire bellwork is no calculator
1

Using cofunctions:

cos33°=

1

Using cofunctions:

cot18°=

1

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

1

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

Problems 5 and 6:

Using this information, find each of the following:
1

sin(s+t)=

1

cos(s-t)=