The value of 𝑏 for which the function 𝑓(𝑥) = 𝑥 + 𝑐𝑜𝑠𝑥 + 𝑏 is strictly decreasing over R is:
A. 𝑏 < 1
B. No value of b exists
C. 𝑏 ≤ 1
D. 𝑏 ≥ 1
Answer:B
The value of 𝑏 for which the function 𝑓(𝑥) = 𝑥 + 𝑐𝑜𝑠𝑥 + 𝑏 is strictly decreasing over R is:
A. 𝑏 < 1 B. No value of b exists C. 𝑏 ≤ 1 D. 𝑏 ≥ 1