Question

sin - cos = 0 find sin ^ 4 + cos ^4​

Answer 1

Answer:

1/2

Step-by-step explanation:

Given sin-cos= 0

sinθ = cosθ at θ = 45°

then

sin∧4 + cos∧4 =  (sin 45°)∧4 + (cos 45°)∧4

                        = (1/√2) ∧ 4 + (1/√2) ∧ 4

                        = 2 * (1/√2) ∧ 4

                       = 2 * 1/2 * 1/2

                      = 1/2