sum of two rational number is -4/5 one of them is minus 11 by 20 find the other.
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The value of the cosine in the 0° right triangle is known as the cosine of angle 0°. The cosine of angle 0° is a value, which denotes the remainder of length of adjacent side to the length of hypotenuse if the angle of a right triangle is equivalent to 0°.
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