Answer:
Supongo que tenemos dos ángulos A y B
"la mitad de A mas la tercera parte de B es igual a 15°" (también supongo que son grados)
A/2 + B/3 = 15°
A/2 = 15° - (B/3)
A = 30° - 2*(B/3)
Ahora queremos calcular:
2*sin(3*A)/cos(2*B)
pero podemos reemplazar A por lo que tenemos arriba:
2*sin(3*(30° - 2*(B/3)))/cos(2*B)
2*sin(90° - 2*B)/cos(2*B)
y como sabemos,
Sin( 90° - x) = Sin(90°)*cos(-x) + cos(90°)*sin(-x) = cos(-x) = cos(x)
entonces:
2*sin(90° - 2*B)/cos(2*B) = 2*cos(2*B)/cos(2*B) = 2*1 = 2.
Answer:
2 and 17
Step-by-step explanation:
its easy to just think of what 34 is divisible by ...you can divide 34 by 2 and find out that 17 x 2 is 34 and when you add them together its 19
It’s an expression of more than two algebraic terms or consists of several terms
X-12=-4
x=-4+12
x=8
The answer is A
Answer:
where are question I don't understand this question
