Question

alguien ke me pueda ayudar

Answer 1

Sen(a) = (x-5)/(x-3)

Cos(a) = (x-4)/(x-3)

Sen(a)+Cos(a) = (x-5)/(x-3) + (x-4)/(x-3)

Sen(a)+Cos(a) = (x-5+x-4)/(x-3)

Sen(a)+Cos(a) = (2x-9)/(x-3)