I think we can use the identity sin x/2 = sqrt [(1 - cos x) /2]
cos x - sqrt3 sqrt ( 1 - cos x) /sqrt2 = 1
cos x - sqrt(3/2) sqrt(1 - cos x) = 1
sqrt(3/2)(sqrt(1 - cos x) = cos x - 1 Squaring both sides:-
1.5 ( 1 - cos x) = cos^2 x - 2 cos x + 1
cos^2 x - 0.5 cos x - 0.5 = 0
cos x = 1 , -0.5
giving x = 0 , 2pi, 2pi/3, 4pi/3 ( for 0 =< x <= 2pi)
because of thw square roots some of these solutions may be extraneous so we should plug these into the original equations to see if they fit.
The last 2 results dont fit so the answer is x = 0 , 2pi Answer
Answer:
Dinda received a 32% loss percentage.
Step-by-step explanation:
<u><em>The question in English is</em></u>
Dinda bought a phone for Rp.2,500,000.00. After 5 months, she sells it with
the price of Rp1,700,000.00. What percentage of losses did Dinda receive?
we know that
Rp.2,500,000.00 represent the 100%
so
Using a proportion
Find out what percentage represent the difference between the original value and the final value
therefore
Dinda received a 32% loss percentage.
Answer:
-32-6
Step-by-step explanation:
this is your answer
1. You have that:
-The <span>police car accelerates 60 meters per second.
- The minivan has a speed of 45 meters per second and is 600 meters ahead of the police car at the beginning of the chase.
2. Therefore, you have:
V1xt=V2xt-600
V1 is the speed of the minivan and V2 is the speed of the police car
3. The time is:
t=-600/V1-V2
t=-600/(45-60)
t=40 seconds</span>
Answer:
31.5
cubic inches of sand will fit in the container because 4.5 x 3.5 • 2 = 31.5in.^3
