NAME ___________________________________________ DATE________________

TRIGONOMETRIC FUNCTIONS

Use your EL-W516B together with the law of sines and the law of cosines to find the distance of the missing side

The law of sines is

a

 

b

c

.

sin

sin

 

 

 

 

sin

The law of cosines is c 2

a 2

b2 2ab cos.

1.Given 30,63, a 11determine the length of side c.

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2.Given 16 grads, 69 grads, b 123 find the length of side a.

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3.Given a 30, b 40,1.5 radians find the length of side c.

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4.Given a 15, c 30, 45find the length of side b.

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5.Given b 13, c 23,100 grads find the length of side a using the law of sines.

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