2. Calcule sen 2a, dada la condición siguiente. Sugerencia: utilice las identidades pitagóricas y la figura del plano de los
cuadrantes.
Si sen a= 4/5 y a está el cuadrante II.
Calcule sen (a/2) y cos (a/2), a partir de la información dada.
sen a = - 2/3 y se sabe que a está en el cuadrante IV.

abde or 1,2,4, 5 is the answer

step-by-step explanation:

step-by-step explanation:

a cube has 6 sides

the probability of getting 5 on the first cube is 1/6 since only one side of the cube has 5 on it.

there are 3 sides of the cube with even number on it [2,4,6]

therefore the probability of getting even number is 3/6

for both events to happen together, the probability would be

1/6 x 3/6 = 12/36

which simplifies to 1/12

maya’s expression will generate the wrong sum because she violated the commutative property.

step-by-step explanation: