Question

If sin Ɵ - cos Ɵ = 0,find the value of

sin4Ɵ + cos4Ɵ​

Answer 1

hi friend,

here is your answer

please follow me

Answer :

1/2

step by step explanation:

from sinƟ - cos Ɵ

cosƟ = sinƟ

hence, Ɵ = 45°

sin^4 45° + cos^4 45°

sin 45° = cos 45° = 1/√2

therefore,

(1/√2)^4+(1/√2)^4

2×(1/4)

1/2

hope it helps

if helps please follow me