Area enclosed between curves made of sin x and cos x

1. A.
   $2\sqrt{2}(\sqrt{2} - 1)$
2. B.
   $2(\sqrt{2} + 1)$
3. C.
   $4(\sqrt{2} - 1)$
4. D.
   $2\sqrt{2}(\sqrt{2} + 1)$

Tap an option to check your answer.

1. A.
   $A_{1} = A_{2}$ and $A_{1} + A_{2} = \sqrt{2}$
2. B.
   $A_{1}:A_{2} = 1:2$ and $A_{1} + A_{2} = 1$
3. C.
   $2A_{1} = A_{2}$ and $A_{1} + A_{2} = 1 + \sqrt{2}$
4. D.
   $A_{1}:A_{2} = 1:\sqrt{2}$ and $A_{1} + A_{2} = 1$

Tap an option to check your answer.

1. A.
   $\sqrt{5} + 2\sqrt{2} - 4.5$
2. B.
   $1 - \frac{3}{\sqrt{2}} + \frac{4}{\sqrt{5}}$
3. C.
   $\frac{3}{\sqrt{5}} - \frac{3}{\sqrt{2}} + 1$
4. D.
   $\sqrt{5} - 2\sqrt{2} + 1$

Tap an option to check your answer.