Question

sin(a) - sin(a) • tan(a) = cos(a)
es verdadero o falso?

Answer 1

Verified answer

Respuesta:

Falso

Explicación paso a paso:

sin(a) - sin(a) • tan(a) = cos(a)

sin a   -     sin^2 a /cos a   =   cos a

sin a * cos a  -     sin^2 a   =   cos^2 a

sin a * cos a = 1

Falso