Answer:
= 
+ 
Step-by-step explanation:
To verify the identity:
sinx/1-cosx = cscx + cotx
we will follow the steps below;
We will take just the left-hand side and work it out to see if it is equal to the right-hand side
sinx/1-cosx
Multiply the numerator and denominator by 1 + cosx
That is;
= 
open the parenthesis on the right-hand side of the equation at the numerator and the denominator
sinx(1+cosx) = sinx + sinx cosx
(1-cosx)(1+cosx) = 1 - cos²x
Hence
= 
But 1- cos²x = sin²x
Hence we will replace 1- cos²x by sin²x
= = = 
=
+ 
=
+ 
= +
= +
Note that;
=
=
Answer:7.50
Step-by-step explanation: 3.00 + 0.50 times 9
P. S. The inequality sign changed or flipped when there's a negative figure involved.
Hope this helps. - M
Answer:
y = x/4 + 5
Step-by-step explanation:
Solve for y:
20 - 4 y = -x
Hint: | Isolate terms with y to the left-hand side.
Subtract 20 from both sides:
-4 y = -x - 20
Hint: | Solve for y.
Divide both sides by -4:
Answer: y = x/4 + 5
Ranking in order from best to worst : Point, line, plane.
Step-by-step explanation:
12.A point in geometry is a location with no size and is shown by a dot. A point is the most fundamental object in geometry that represents a position.
A line can be defined as a connected set made up of infinitely many points.A line has one dimension and extends in infinitely in different directions.It has zero width and zero height.
A plane is an infinite set of points forming a connected flat surface that extends infinitely far in all directions. In a plane, the width, length and height are infinite.
13.
Points S and V are collinear points.
Points R, and U are collinear points
Points Q and T are collinear points
The figure has no plane indicated
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Point, line and plane : brainly.com/question/13148935
Keywords : line, plane, point, best worst, conclusion
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