Q. If $x \cos \theta-y \sin \theta=P$, find the value of $x \sin \theta$ $+y \cos \theta=?$
Trigonometry
Solution:
Correct answer is (b) $\sqrt{x^2+y^2-p^2}$Correct answer is (c) $-\sqrt{x^2+y^2-P^2}$Correct answer is (d) Both (b) and (c)
