If a sin θ +b cos θ =c, then prove that, a cos θ -b sin θ =
Given: a sin θ +b cos θ = c
Squaring the above equation,
⇒ a2sin2 θ +b2 cos2 θ + 2ab sin θ cos θ = c^2
Hence, proved.
11
If a sin θ +b cos θ =c, then prove that, a cos θ -b sin θ =
Given: a sin θ +b cos θ = c
Squaring the above equation,
⇒ a2sin2 θ +b2 cos2 θ + 2ab sin θ cos θ = c^2
Hence, proved.