Question

If sin theta + cos theta = 1.4 then sin
theta into cos theta =________


With solutions

Answer 1

Answer:

sin□+cos□=1.4

Step-by-step explanation:

1. sqaure both sides (sin□+cos□)^2=1.96
2. expand sin□^2 +2sin□cos□+cos□^2=1.96
3. we know sin□^2+cos□^2=1
4. 1+2sin□cos□=1.96
5. 2sin□cos□=1.96-1=0.96
6. sin□cos□=.96÷2=.48

Answer 2

Answer:

see the attachment

Step-by-step explanation:

hope it helps you