Question

if theta =45° then the value of cos^2 theta -sin^2 theta​

Answer 1

Answer:

the answer would be zero

Answer 2

Answer:theta = 45

             cos 45 = 1/$\sqrt2$

              sin 45 = 1/$\sqrt2$

  cos^2 theta -  sin^2 theta

   1/2 - 1/2

   0

Explanation:the ans is 0 hope it helps