Exercises 1 (Of 5) Please Help me

[flowersa]

Hi guys I have 5 exercises I have to calculate so any help is welcome! (Sorry for my English)

Question 1 A


Calculate When R is the circle in radius a that is in first quarter and tangents to coordinates of axes

B Replace the order of integration of the follow integrals

 

[HallsofIvy]

If you have exercises like these, surely you have learned something about problems like this? Have you not learned that a circle with radius a and center at (a, a) has equation \(\displaystyle (x-a)^2+ (y-a)^2= a^2\)? And so \(\displaystyle y= a\pm \sqrt{a^2- (x- a)^2}\)? To cover that disk x must run from 0 to 2a and y from 0 to \(\displaystyle a+\sqrt{a^2- (x- a)^2}\).

 

[flowersa]

Hi HallsofIvy I'm struggling with it a lot I didn't mange to understand it good so far so thanks for helping What about part B?