We can use tan(x) = sin(x)/cos(x). Plug in numbers to get:
tan(x+pi/2) = sin(x+pi/2)/cos(x+pi/2)
Here, you can use the sin and cos addition identity:
tan(x+pi/2) = (sin(x)cos(pi/2)+cos(x)sin(pi/2))/(cos(x)cos(pi/2)+sin(x)sin(pi/2))
If you simplify this, you get:
0+cos(x)/0-sin(x)
Which is the definition of cot(x). But, we can't forget about the '-' sign, so, the answer is -cot(x)
Answer:
<em>Abraham Lincoln </em>
Step-by-step explanation:
<u><em>Abraham Lincoln was the 16th president of the United States and is regarded as one of America's greatest heroes due to his role as savior of the Union and emancipator of enslaved people. Lincoln's distinctively humane personality and incredible impact on the nation have endowed him with an enduring legacy.
With his ability to command a room, give a powerful speech and negotiate, he is regarded as one of the best presidents in American history. As a leader, Lincoln was determined to hold together a nation that was falling apart at the seams. </em></u><u><em>Abraham Lincoln was voted the best US president in a survey where nearly 100 historians and biographers rated past commanders in chief on 10 leadership qualities</em></u>
Answer:
C) Volume
Step-by-step explanation:
Volume of any three dimensional figure is defined as its capacity.
Here, if we take the figure of a 3D Prism,
Here,
Perimeter = Sum of all sides
Total Area = sum of Area of all triangles
Volume = Length x Breadth x Height = Product of dimensions
then Multiplying all its dimensions will give us its volume.
That as a decimal is
19/25=0/76
It can't be simplified but could be made larger
38/50
Answer:Answer:
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Explanation:
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Step-by-step explanation:
Answer:
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Explanation:
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