Simplify the radical. Assume that all variables represent positive real numbers.
A. - 
B. 
C. - 
D. 
Answer: A
Mathematics
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For the given Cartesian equation, write an equivalent polar equation.x2 - y2 = 4
A. r2 cos 2? = 4 B. cos2 ? - sin2 ? = 4r C. r cos 2? = 4 D. cos2 ? - sin2 ? = 4
Mathematics
Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.csc 35°
A. csc 145° B. sec 55° C. sin 55° D. sec 35°
Mathematics
Provide an appropriate response.True or false? The statement tan-1(tan x) = x for all real numbers in the interval - 
< x < 
.
A. True B. False
Mathematics
Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.8 cos2 x
A. 16 cos x B. 1 + cos 2x C. 4 - 4 cos 2x D. 4 + 4 cos 2x
Mathematics