How i prove this ?
1 Answer
Apr 17, 2018
We have:
#cos40˚ + tan alphasin40˚ = (cos40˚cosalpha + sin40˚sin alpha)/cosalpha#
#cos40˚ + tanalphasin40˚ = cos40˚ + sin40˚tanalpha#
As required.
Hopefully this helps!
