1 meter is 1000000000 nanometers
The first answer, answer A. It's easy.
Step-by-step explanation:
sec x − cos x
Secant is the inverse of cosine:
(1 / cos x) − cos x
Find the common denominator:
(1 / cos x) − (cos² x / cos x)
Subtract:
(1 − cos² x) / cos x
-0.91 is mostly likely the correlation coefficient for the set of data shown
