3cosx-4sinx=2 cosx-sinx=1 3sin2x+4cos2x=5

Question

3cosx-4sinx=2

cosx-sinx=1

3sin2x+4cos2x=5

Answer 1

1)3соsx/cosx -4sinx/cosx=2
3-4tgx=2
tgx=1/4
2) cosx/cosx-sinx/cosx =1
1-tgx=1
tgx=1