Determine the value of the indicated function in the given manner.Find sin 90° by using the functions of 45°.
A. 1
B. 0
C. - 1
D. undefined
Answer: A
Mathematics
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Simplify and evaluate using a calculator.
A. 
; 0.70710678
B. 
; 1.58113883
C. 
; 0.5
Mathematics
Factor and, if possible, simplify the expression.1 - 2 sin2x + sin4x
A. (1 - sin2x) B. sin2x C. (1 + tan2x) D. cos4x
Mathematics
Find the logarithm. Give an approximation to four decimal places.log 2.38
A. 0.3766 B. 0.8671 C. 0.3579 D. 0.3945
Mathematics
Provide an appropriate response.The fraction 
converts into a repeating decimal.
A. True B. False
Mathematics