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1) Use a calculator to find the measure of the angle to the nearest degree.

cos^-1 (0.47)

 

2) Use a calculator to find the measure of the angle to the nearest degree.

tan^-1 (1.21)

 

3)Use a calculator to find the measure of the angle to the nearest degree.

sin^-1 (0.82)

 Sep 25, 2014

Best Answer 

 #1
avatar+23245 
+5

Make certain that you calculator is in degree mode.

Since you want cos^-1, enter 2nd cos (0.47)  ---> answer (approx) 62 degrees.

2nd tan (1.21) ---> answer (aprox) 50 degrees.

2nd sin (0.82) ---> answer (approx) 55 degrees.

2nd sin is the same as arc sin is the same as inv sin.

 Sep 25, 2014
 #1
avatar+23245 
+5
Best Answer

Make certain that you calculator is in degree mode.

Since you want cos^-1, enter 2nd cos (0.47)  ---> answer (approx) 62 degrees.

2nd tan (1.21) ---> answer (aprox) 50 degrees.

2nd sin (0.82) ---> answer (approx) 55 degrees.

2nd sin is the same as arc sin is the same as inv sin.

geno3141 Sep 25, 2014

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