4. Use the graph of the function f(x): a. Where is f(x) > 0 ?

b. Where is f(x) <0?

c. Where is f(x) = 0 ?

d. What is the local minimum over the
interval [-2.5, 1)?

e.
What is the local maximum over the
interval [-2.5, 1] ?

f. f(0) =

g. O= -5.7

the correct answer to your question is a. 4^4

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12

step-by-step explanation:

it's d

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92