Answer:
Step-by-step explanation:
sin(x+y) = sin(x)cos(y) + sin(y)cos(x)
sin(x-y) = sin(x)cos(y) - sin(y)cos(x)
Sin(x+y)sin(x-y) = (sin(x)cos(y) + sin(y)cos(x))(sin(x)cos(y) - sin(y)cos(x))
= sin^2(x)cos^2(y) - sin^2(y)cos^2(x)
= sin^2(x)(1-sin^2(y)) - sin^2(y)(1-sin^2(x))
= sin^2(x) - sin^2(x)sin^2(y) - sin^2(y) + sin^2(x)sin^2(y)
= sin^2(x) - sin^2(y)
So L.H.S=R.H.S
Hence proved
The answer to this question is 4124
Answer:
(x+8)
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
4% of 600 is 24
hope this helps
Answer:
$15700
Step-by-step explanation:
To find the cost, you multiply $50 by the area of the floor. The floor must be a circle ("radius"), so to find the area of a circle, use the formula![A=\pi r^2 \\ A=\pi(10)^2 \\ A=(3.14)(100)=314\text{ square feet}](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E2%20%5C%5C%20A%3D%5Cpi%2810%29%5E2%20%5C%5C%20A%3D%283.14%29%28100%29%3D314%5Ctext%7B%20square%20feet%7D)
Multiply 314 sq. ft. by the cost per sq. ft.
314 x 50 = 15700