Cos(a - b) =
= cos a cosb+ sina sin b for all values of a and b.
A. True
B. False
Oh

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step-by-step explanation:

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answer: 486in^2

step-by-step explanation:

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a