Sin 2x - sin 4x = 0
sin 2x - 2sin 2x cos 2x = 0
sin x(1 - 2cos 2x) = 0
sin x = 0 or 1 - 2cos 2x = 0
sin x = 0 or 2cos 2x = 1
sin x = 0 or cos 2x = 1/2
x = arc sin 0 or 2x = arc cos (1/2)
x = arc sin 0 or x = 1/2 arc cos (1/2)
x = 0, π, 2π or x = π/6, 7π/6
Answer:
each would receive $399
Step-by-step explanation:
divide 5 from 1995 which equals 399 :)
Answer:
8+2j like you say let j be the variable and more than means+
Answer:
258 cm
Step-by-step explanation:
Given:
Distance from the base of the pole to the base of a tent guy line is 
Length of a tent guy line is 359 cm
To find: Height of the upright tent pole
Solution:
Let AB denotes the pole and AC denotes a tent guy line.
According to Pythagoras theorem, in a right angled triangle, square of hypotenuse is equal to sum of squares of other two sides.


Therefore,
