développer 12pi(36-r^2)

Solution

développer

12 π (36 - r^{2})

- 12 π r^{2} + 432 π

étapes des solutions

12 π (36 - r^{2})

Appliquer la loi de la distribution:

a (b - c) = ab - a c

a = 12 π, b = 36, c = r^{2}

= 12 π 36 - 12 π r^{2}

= 12 \cdot 36 π - 12 π r^{2}

Simplifier

12 \cdot 36 π - 12 π r^{2} : - 12 π r^{2} + 432 π

= - 12 π r^{2} + 432 π

e x p an d (i^{3}) (1) (i)

e x p an d 2 e^{x} (x - 1)

e x p an d \frac{1}{( 1 - 8 x ) ^{2}}

e x p an d \frac{( ( 1 - x ) ^{3} ) ^{'} \cdot 2 x ^{2} - ( 1 - x ) ^{3} \cdot ( 2 x ^{2} ) ^{'}}{2 x ^{4}}

e x p an d \frac{32 x ^{2} + 288 x + 640}{8 x + 40}