Okay so i have two problems that I cant solve completely.
One is a a word problem
1. A sharpshooter intends to hit a target at a distance of 1000 yards with a rifle having a muzzle velocity of vo=1200 feet per second. Neglecting air resistance, determine the gun's minimum angle of elevation x if the range r is given by
I can solve this problem down to 1/15 = sin(2x) (assuming i did this much right).
My second problem is:
Solve tan(x+pi)+2sin(x+pi)=0 i started to solve this using the sum and difference formulas.
If anyone could help that would be great. Thanks