Sharp EL-W516B 34, 21, 40, 24, 12

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INVERSE TRIGONMETRIC FUNCTIONS

Use your EL-W516B and the law of sines and the law of cosines to find the missing angle.

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 a  2, b  7,   23find  in grads.

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2.Given a  34, c  21,  94 grads, find  in radians.

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3.Given a  3, b  4, c  5 find  in degrees.

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4.Given a  40, b  24, c  17 find  in radians

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5.Given a  5, b  12, c  13 find  in degrees.

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