Answer:
=x
Step-by-step explanation:
Answer: divide 2 from what you got from the last one
Step-by-step explanation:
32+16=48 so then divide 16 by 2 or subtract 8
Answer:
Step-by-step explanation:
1. bottom left
Answer:
Hay 56 diez en el numero 568.
Step-by-step explanation:
Uses el primer dos numeros en el numero encontrar cuantos decena hay.
I assume you're supposed to establish the identity,
cos(A) cos(2A) cos(4A) = 1/8 sin(8A) / sin(A)
Recall the double angle identity for sine:
sin(2<em>x</em>) = 2 sin(<em>x</em>) cos(<em>x</em>)
Then you have
sin(8A) = 2 sin(4A) cos(4A)
sin(8A) = 4 sin(2A) cos(2A) cos(4A)
sin(8A) = 8 sin(A) cos(A) cos(2A) cos(4A)
==> sin(8A)/(8 sin(A)) = cos(A) cos(2A) cos(4A)
as required.
