Answer:
see explanation
Step-by-step explanation:
Using the double angle identity for sine
sin2x = 2sinxcosx
Consider left side
cos20°cos40°cos80°
=
(2sin20°cos20°)cos40°cos80°
=
(2sin40°cos40°)cos80°
=
(sin80°cos80° )
=
(2sin80°cos80° )
=
. sin160°
=
. sin(180 - 20)°
=
. sin20°
=
= right side , thus proven
X = 8.) 2x8 +1 = 17, 8 +9 = 17
Answer:
Ilan lahat Ang kabuuang bilang ng mga nakalarawang bagay
8x6=48, 1x48, 2x24=48, 3x16=48, 4x12, and 6x8
I hope this helps!!!