Question

6. Evaluate : (sin theta + cos theta) ^ 2 + (cos theta - sin theta) ^ 2 .​

Answer 1

Answer:

[sintheeta + cos theeta]^2 + [ sin theeta-costheeta]^2

sin^2 theeta + cos^2 theeta + 2 sintheeta cos theeta + sin^2 theeeta + cos^2 theeta - 2 sin theeta cos theeta

here, sin^2 theeta + cos^2 theeta = 1

so , 1+1 =2

Answer 2

Answer:

the answer got after evaluation of given question is 2