Question

13. Si X = ? y sen (2x + y) = cos 2y, calcula el valor
3 4
de E.
E = 5x + 3y

Answer 1

Respuesta:

"x" - "E"

dy = 2cos(2x + y)

dx = cos(2x +y)-2

Operación:

d d

__ = [sin(2x + y)] = __ (2y)

dx dy

___________________________

dy dy dy

cos(2x + y) × (2 + __ ) = 2× __ = 2× __

dx dx dx

___________________________

dy

2cos(2x + y) + cos(2x + y) × ___

dx

____________________________

dy

[cos(2x + y)-2] × __ = -2cos(2x + y)

dx

efE..- espero te ayude-