OpenStudy (itiaax):

Integration help. *question attached below* will give medal

3 years ago
OpenStudy (itiaax):

Can I have some help on this question please? T.R. means Trapezium Rule. And if there's anything about my handwriting you don't understand, please let me know.

3 years ago
ganeshie8 (ganeshie8):

As a start : sketch the region and setup an integral for volume

3 years ago
OpenStudy (itiaax):

Hmm, give me a second to figure it out

3 years ago
OpenStudy (itiaax):

Question, how does the line x=pi/4 look?

3 years ago
ganeshie8 (ganeshie8):

pi is a number

3 years ago
ganeshie8 (ganeshie8):

x = pi/4 is a vertical line passing through the point (pi/4, 0)

3 years ago
OpenStudy (itiaax):

Thank you! I shall attempt to sketch the graph now

3 years ago
OpenStudy (itiaax):

|dw:1414546315849:dw|

3 years ago
ganeshie8 (ganeshie8):

0 to pi/4 refers to moving along x axis

3 years ago
ganeshie8 (ganeshie8):

where is the curve $$\large y = \sqrt{2+\cos x}$$ ?

3 years ago
OpenStudy (itiaax):

|dw:1414546483172:dw|

3 years ago
ganeshie8 (ganeshie8):

looks perfect, delete that earlier diagonal line from origin

3 years ago
ganeshie8 (ganeshie8):

|dw:1414550395219:dw|

3 years ago