Question

(1+sinA+cosA)^2 + (1-sinA+cosA)^2 = 4(1-sinAcosA)

Answer 1

Answer:

Step-by-step explanation:

(1+sinA+cosA)^2 + (1-sinA+cosA)^2

= [(1)^2 + (sinA+cosA)^2] + [(1)^2 - (sinA+cosA)^2]

now it might be easier to solve

good day