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
Answer:
I do not know
Step-by-step explanation:
Step-by-step explanation: you divide the ft. all together and then add.
Answer:
that would all have 7 pencils each