Find the exact value by using a half-angle identity.cos 75°

A.  
B.  
C. -  
D. -  


Answer: B

Mathematics

You might also like to view...

Perform the indicated operation. Write the answer in scientific notation.

A. 6 × 1011 B. 6 × 101  C. 3.0 × 101  D. 3.0 × 1011 

Mathematics

Provide an appropriate response.Provide a short sentence that summarizes the general limit principle given by the formal notation   given that  and 

A. The sum or the difference of two functions is the sum of two limits. B. The limit of a sum or a difference is the sum or the difference of the functions. C. The sum or the difference of two functions is continuous. D. The limit of a sum or a difference is the sum or the difference of the limits.

Mathematics

Determine whether the relation represents a function. If it is a function, state the domain and range.{(-2, 5), (-1, 2), (0, 1), (1, 2), (3, 10)}

A. function domain: {5, 2, 1, 10} range: {-2, -1, 0, 1, 3} B. not a function C. function domain: {-2, -1, 0, 1, 3} range: {5, 2, 1, 10}

Mathematics

Graph the exponential function using transformations where appropriate.f(x) = 2x-2 - 5

A.

B.

C.

D.

Mathematics