Find for cos B as well. Then substitute into the LHS of the equation and the remaining work is just algebra.
Wow, that's really great idea, never cross my mind. I've tried it and yes it worked, but my teacher didn't accept it because we are supposed to do it with trigonometry identity. Can you direct me how to use trig. identity to solve this?
Wow, that's really great idea, never cross my mind. I've tried it and yes it worked, but my teacher didn't accept it because we are supposed to do it with trigonometry identity. Can you direct me how to use trig. identity to solve this?
Thanks
True since this comes under trigonometry, my teacher wouldn't accept it either. WTell, i will try another way.
from the sine rule.
Lets begin from the LHS, divide both the denominator and numerator by a,