Answer:
5 x - 6 y - 8 = 0.
Step-by-step explanation:
0.158 < 0.58
0.58 is greater than one hundred fifty-eight thousandths.
You can compare the tenths place of both numbers to find out.
Answer:
for first question the answer will be .. 5
Step-by-step explanation:
easily,
Answer:
See below in bold.
Step-by-step explanation:
cos 4x = 2cos^2 2x - 1 = 2 (2 cos^2 x - 1)^2 - 1
and cos 2x = 2 cos^2 x - 1 so we have:
2 ( 2 cos^2 x - 1)^2 - 1 - (2cos^2 x - 1) = 0
2 ( 2 cos^2 x - 1)^2 - 2 cos^2 x = 0
(2 cos^2 x - 1)^2 - cos^2 x = 0
Let c = cos^2 x, then:
(2c - 1)^2 - c = 0
4c^2 - 4c + 1 - c = 0
4c^2 - 5c + 1 = 0
c = 0.25, 1
cos^2 x = 0.25 gives cos x = +/- 0.5
and cos^2 x = 1 gives cos x = +/- 1.
So for x = +/- 1 , x = 0, π.
For cos x = +/- 0.5, x = π/3, 2π/3, 4π3,5π/3.
<span>The best idea to solve this question is to convert all in same unit i.e. grams.
1 Gg = 10^9 g
100 g = 10^2 g
50 cg = 50*10^-2 g = 0.5 g
1 kg = 1000 g
1 cg = 0.01 g
1 dg = 0.1 g
50 mn ng = 50 * 10^6 * 10^-9 gram = 5* 10 ^-2 g = 0.5g
So, the correct order is 1 Gg > 1 kg > 100 g > 50 cg = 50 mn ng > 1 dg > 1 cg</span>
