Use a half-angle formula to find the exact value of the expression.sin 
A. - 
B. 
C. 
D. - 
Answer: B
Mathematics
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Find the exact value of the trigonometric function. Do not use a calculator or tables.tan 
A. 
B. 
C. 
D. 2
Mathematics
Find the indicated term of the binomial expansion.(3 - x)5; term containing x2
A. 10x2 B. -27x2 C. 270x2 D. -90x2
Mathematics
Solve.The relationship between 
and 
degrees of measuring temperature is linear. Find an equation relating 
and 
if 
corresponds to 
style="vertical-align: -4.0px;" /> and 
corresponds to 
Use the equation to find the Celsius measure of 
A. C = 
F - 10; - 
°C
B. C = 
F - 80; - 
°C
C. C = 
F - 
; - 
°C
D. C = 
F + 
; 
°C
Mathematics
Multiply.(7 - 7i)(9 + 4i)
A. 91 - 35i B. 35 - 91i C. 91 + 35i D. -28i2 - 35i + 63
Mathematics