evanpeirce36 evanpeirce36

10-02-2021
Mathematics

contestada

At x= pi/4 , find the product (sin4x)(cos5x)

Respuesta :

mhanifa mhanifa

10-02-2021

Answer:

zero

Step-by-step explanation:

x= π/4

sin(4x)*cos(5x) =
sin(4*π/4)*cos (5*π/4) =
sin(π)*cos(5π/4)

sin(π) = 0, therefore the product is also zero

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