Can someone please explain how to do this?
1 answer:
Answer:
see below
Step-by-step explanation:
Factor the equation and use the zero product rule.
0 = 2sin(t)² +sin(t) . . . . . . . the velocity is zero
0 = sin(t)·(2sin(t) +1) . . . . . factor the equation
The product will be zero when either factor is zero:
<u>sin(t) = 0</u>
This is true for t = 0, π, 2π.
__
<u>2sin(t) +1 = 0</u>
This is true for sin(t) = -1/2, at t = 7π/6 and 11π/6.
Then the solution is ...
t ∈ {0, π, 7π/6, 11π/6, 2π}
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Answer:
The radius is 7
The diameter is 14
The circumference is 43.98 (if they want it simplified put 44)
Step-by-step explanation:
1.The radius is already given in the picture so the answer is 7
2.To find the diameter, multiply the radius by two. 7 times 2=14
3.The formula for circumference is C=2r. Remove the r and replace it with the number 7. Plug 2
7 into your calculator and you will get 43.98
Answer:
Part 1)
Projection of vector A on vector B equals 19 units
Part 2)
Projection of vector B' on vector A' equals 35 units
Step-by-step explanation:
For 2 vectors A and B the projection of A on B is given by the vector dot product of vector A and B
Given
Similarly vector B is written as
Thus the vector dot product of the 2 vectors is obtained as
Part 2)
Given vector A' as
Similarly vector B' is written as
Thus the vector dot product of the 2 vectors is obtained as