<span>4 1/5-2 1/2 = 1.7
1.7 to fraction is 1 7/10
Answer: 1 7/10</span>
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: 30 Pins
Step-by-step explanation:
I solved it on khan academy