Answer:
f(x) = sec x. tan x
⇔ f(x) = 1/cosx . cosx/sinx
⇔ f(x) = sin x
+) when f(x) is increasing => sin x increases
=> x will increase
+) f(x) is decreasing => x will decrease
+) f(x) is concave up => x ∈ (-pi/2; 0)
+) f(x) concave down => x ∈ (0; pi/2)
Step-by-step explanation:
Answer:
Step-by-step explanation:
One solution would be (1, -4), and the other would be (4, -7).
Answer:
74
x
+
185
Step-by-step explanation:
Answer:
I believe its C
amsc:dherbo00
Step-by-step explanation:
