Answer:
a) clockwise sense
b) x² + y² = 1
c) y ∈ [0,1]
Step-by-step explanation:
a) x = cos (t) y = -sin (t)
for t ∈ [ 0 , 2π ]
for t = 0 point P is x = cos (0) = 1 y = -sin (0) y = 0
The point is on the x axis
Now let´s see what happens for t = π/4
x = cos (π/4) x = √2/2 and y = - sin (π/4) y = - √2/2
Note π/4 is 45°
The coordinates of the new point P ´(t = π/4) are in the fourth quadrant
that means the point is moving clockwise sense.
b) x = cos(t)
y = -sin(t)
Squaring on both sides of each equation we get:
x² = cos²t
y² = sin²(t)
Adding side by side
x² + y² = cos²t + sin²t
x² + y² = 1
Values for y are y ( 0 , 1)
Answer:
1/2
Step-by-step explanation
Please mark me as brainliest!
When we say inverse of the statement, this is the statement that is the opposite or negating the given proposition. If the given proposition is true, the inverse may be deemed false. So for the given statement above, the inverse would be, "If two lines are not parallel, then they intersect." Hope this is the answer that you are looking for.
Answer:
here 1st case
x+y=77
or,x=77-y
second case
4x+2y=286 (according to question)
putting value of x from first case
4 (77-y)+2y=286
or,308-4y+2y=286
or,308-286=2y
or,22=2y
or,11=y and x=77-11
x=66
Step-by-step explanation:
so,y=11 and x=66
