Question

please.....................​

Answer 1

Answer: 3/5

explanation:

sin theta + cos theta / sin theta - cos theta = 3

sin theta + cos theta = 3 sin theta - 3 cos theta

4 cos theta = 2 sin theta

sin theta / cos theta = 2

tan theta = 2

sin theta = 2/√5

cos theta = 1/√5

now given,

sin^4 theta - cos^4 theta

(2/√5)^4 - (1/√5)^4

16/25 - 1/25

3/5 answer