Use a calculator to find the value of the expression rounded to two decimal places.sin-1 (0.7)
A. 0.80
B. 44.43
C. 45.57
D. 0.78
Answer: D
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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = 
, 0 < ? < 
Find sin 
.
A. 
B. 
C. 
D. 
Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 75°
A. - 
B. 
C. - 
D. 
Complete the identity.
= ?
A. cos ? + sin ? B. cos ? - sin ? C. cot ? - 1 D. cot ? + tan ?
What type of research is designed to discover causal relationships between various factors?
A. correlational B. hypothetical C. experimental D. theoretical