25sin@ -1.5 cos@ = 20 @ = theta
Follow Math Help Forum on Facebook and Google+
Originally Posted by jewd777 25 sin@ -1.5 cos@ = 20, whats @ = ? Hint: Apply the identity
there may be a more clever way but by brute force and ignorance: Solve for 25 sin(@) = 20+1.5cos(@) square both sides and convert the LHS to a fn of cos(@) you now have a quadratic in cos@
View Tag Cloud