Use identities to write the expression as a single function of x or ?.cos (? + 90°)
A. cos ?
B. -cos ?
C. -sin ?
D. sin ?
Answer: C
Mathematics
You might also like to view...
Solve the equation.12d2 + 38d + 30 = 0
A. 
, 
B. 
, 
C. - 
, - 
D. - 
, - 
Mathematics
The graphs of two functions f(x) and g(x) are given.Solve f(x) ? g(x).
A. x ? -1 or x ? 1 B. -1 ? x ? 1 C. -6 ? x ? 6 D. x ? -6 or x ? 6
Mathematics
Solve.Three times the square of the difference between a number and 5 is -75. Find the number(s).
A. 5 + 5i
and 5 - 5i
B. 5 + 5i and 5 - 5i
C. -5 + 5i and -5 - 5i
D. 5i + 5 and 5i - 5
Mathematics
Write the fraction in lowest terms.
A. 
B. 
C. 
D. 
Mathematics