Given:
To find:
Select the true statements from the given options about the given value.
Solution:
We have,
It can be written as
Clearly, the value of x lies between 4 and 5. So, and
.
Therefore, the correct options are C and D.
19. Express 9/4
1 answer:
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Answer:
= [r,z]
Step-by-step explanation:
B U A = { f,g,p,x,h,y }
(B U A )' = {q,r,z }
<em>x</em> ^2 + <em>y</em> ^2 = 9 => <em>y</em> = <em>y(x)</em> = ± √(9 - <em>x</em> ^2)
Each cross section would be a square with side length equal to the vertical distance between the upper and lower semicircles defined by <em>y(x)</em>, which is
√(9 - <em>x</em> ^2) - (- √(9 - <em>x</em> ^2)) = 2 √(9 - <em>x</em> ^2)
The area of each square section is the square of this length,
(2 √(9 - <em>x</em> ^2)) = 4 (9 - <em>x</em> ^2) = 36 - 4<em>x</em> ^2
We get the whole solid for -3 ≤ <em>x</em> ≤ 3, so integrating gives a volume of