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Why does x equal 0 when finding the sin of 90 degrees?
On the unit circle sin(90) degrees is at Y = 1 and as that is on the Y axis X will equal = 0. Ask yourself. Where would 90 degrees be on a 360 degree circle? Straight up.
How is cos 90 equal to 0?
The Unit Circle is a circle that has a radius of 1 and a center at the origin. If you look at the unit circle 90 degrees is at the point (0,1). Cosine is equal to the x value of a point on the Unit Circle. The line created to the point (0,1) on the unit circle when the degree is 90 is completely vertical, which in turn makes the x value 0 and thus, cosine of 90 = 0. Read more >> Options >> http://www.answers.com?initiator=FFANS
A right angle contains degree?
A right angle is 90 degrees.
If 90 equals 7.5x what is x?
7.5 x = 90x = (90 / 7.5) = 12
What percentage is 53 out of 59?
90%
What is the mode of 88 89 96 89 90 90 88 89 92 94 90?
90
What is the median of these numbers 89 90 93 93 93 89 90?
90, as it is the middle number when they are put into order:89, 89, 90, 90, 93, 93, 93.
What is 1 plus 89?
90
What is the least common multiple of 89 and 90?
LCM(89, 90) = 89*90 = 8010
What prime number is greater than 88 and less than 95?
89
Are 89 90 91 degrees angles in a triangle?
All of the angles in a triangle must add up to exactly 180 degrees. 89, 90, and 91 degrees equal up to 270 degrees. So these angles are not characteristics of a triangle.
What are four consecutive odd integers whose sum equal to 360?
Well, an easy way to figure this out is divide 360 by 4 to get 90, then subtract 3 from 90 to get 87, then subtract 1 from 90 to get 89, then add 1 to 90 to get 91, then add 3 to 90 to get 93. So, the consecutive odd integers that add up to 360 are: 87, 89, 91, and 93, and to check, 87+89+91+93=360. :)
What is the average of 90 86 91?
The average is 89.
What are the factors of 89 and 90?
The factors of 89 are: 1, 89 The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
What times 3 is 89?
89 89 89 --- 240 27 ----- 267
What is the complement of 89 degrees?
The complement of 89 degrees is: 89+1 = 90 degrees which is a complementary angle
How many pounds is equal to 89 kilos?
A Kilo is about twice as heavy as a pound so about 180 lbs are in 90 kilos.Actually this is incorrect. A pound (lb) as used in the United States is about 0.45 kilos. So one kilo is approximately 2.2 pounds. That makes 90 kilos about 198 lbs.
