Question

If A=B-C, then the angle between a
and B is
4² + B² – C²
2 AB
1) e = cos
2) 0 = sin
A²+ B² - C²
2 AB
4² + B² – C²
2 AB
3) 0 = tan
A²+ B² - C²
2 AB
4) = cot​

Answer 1

Answer:

Let θ be an angle such that ... a cos θ + b sin θ = c ............. (1) Squaring both sides, ... a² cos² θ + b² sin² θ +2ab sin θ cos θ = c² ∴ a² ( 1 ...