If Cos A + Sin A =√2Cos A then Cos A- Sin A is equal to:

(where 0o<A<90o)

  1. √(2Sin A)
  2. 2√Sin A
  3. √2 Sin A
  4. 2 Sin A
Anurag Mishra Professor Asked on 10th December 2015 in Maths.
Add Comment
  • 1 Answer(s)

    Answer:  (1) sqrt. (2 SinA) 

    Anurag Mishra Professor Answered on 10th December 2015.
    Add Comment
  • Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.