Answer:
sin²Ф
Step-by-step explanation:
I doubt that you actually meant "cos 0" ... that has a value of 1.
If you meant (1-cos Ф)(1+cos Ф), then this product is 1 - cos²Ф.
That, in turn, is equal to sin²Ф
Answer:

Step-by-step explanation:
we know that
The equation of a vertical parabola into vertex form is equal to

where (h,k) is the vertex of the parabola
The axis of symmetry is equal to

In this problem the parabola open upward
so
the coefficient a is positive
The coordinates of the vertex will be
(the y-coordinate is negative)
so
the equation will be of the form

Answer:
136x+100
Step-by-step explanation:

Hope this helps!
Answer:
26
Step-by-step explanation:
18,23,24,28,29,30
(6 in total + 1)/2=3.5.
- the number which is 3.5 is between 24 and 28.
- middle number between these two is 26.
To solve this find the common number that can be divided by both and use that number.
In this case, 4 is divisible by both 4 and 12, and thus the final expression would be
4(d + 3e).