Question

if cos theta- sin theta = root 2 sin theta P.T cos theta+sin theta=root 2 cos theta

Answer 1

Answer:

Step-by-step explanation:

We have,  

$cos(\theta) - sin(\theta)  = \sqrt{2} \\ </p><p>=> cos(\theta)  = (\sqrt{2} +1) sin(\theta)  \\ </p><p>=> cos(\theta)  = \frac{1}{ (\sqrt{2} -1) }sin(\theta) \\ </p><p>=>     (\sqrt{2} -1)  (cos(\theta) = sin(\theta)\\ </p><p>=> </p><p>(cos(\theta) +sin(\theta)= \sqrt{2} cos(\theta)$