Check the picture below.
recall that in a square, all sides are equal, so if we make b = a, then we get that for one side, also recall that the area of a rectangle is length*width, so in this case,
The answer would be A. There is a phase shift to the left. Because you are adding pi/6.
An inverse operation reverses the effect of another operation. Answer is C
Answer:
El área es 2 veces el cuadrado del ancho del rectángulo.
Step-by-step explanation:
El área de un rectángulo viene dado por:

En donde:
a: es el ancho
l: es el largo
Si el largo es el doble del ancho:

Entonces el área es:

Por lo tanto, el área es 2 veces el cuadrado del ancho del rectángulo.
Espero que te sea de utilidad!
Answer:
It would've been more difficult to solve and doing it as shown in EX:2 it's a way easier method to use and remember.