Question

if A costheta -B sintheta =C, rove that A sintheta+B costhetha=± ✓a²+b²-c².​

Answer 1

Answer:

when x = 20 a square minus b square + 2 AV square if a cos theta minus b sin theta equals to see rop that a + b + a square + b square minus 2 a b is that answer your answer