Question

If tan theta= root2 -1, show that sin theta, cos theta = root2/4.


broz or sis if any knows the answer plz post. slowly by step by step.im so confused.plz help​

Answer 1

Answer:

Well sin = opposite/hypotinuse

so we can use a^2+b^2=c^2

-3^2+b^2=4^2

9+b^2=16

b^2 = 7