Answer:
120 degrees
Step-by-step explanation:
5 times 25 equals 125.
subtract 5
=120
Cos(A-B) = cosAcosB + sinAsinB
<span>
cos(</span>π/2 - θ) = cos(π/2)cosθ + sin(π/2)sinθ
π/2 = 90°
cos(π/2) = cos90° = 0. sin(π/2) = sin90° = 1
cos(π/2 - θ) = cos(π/2)cosθ + sin(π/2)sin<span>θ
</span>
= 0*cosθ + 1*sin<span>θ = </span>sin<span>θ
Therefore </span>cos(π/2 - θ) = sin<span>θ
QED </span>
Answer:

Step-by-step explanation:

I think ur homework sheet is wrong the difference is definitely 6
Answer:
For number 7 it is 6x*4
For number 8 it is 3(6+4)
Have a great day :)