8. - There's an evolutionary imperative why we give a crap about our family and friends. And there's an evolutionary imperative why we don't give a crap about anybody else. If we loved all people indiscriminately, we couldn't function. 所以进化论才会告诉我们,关心家人朋友是人类文明发展的必...
Sine function is a trigonometric function that is equal to the ratio of perpendicular and hypotenuse of a right triangle. Learn sine function definition, formula, properties, values for different angles, at BYJU'S.
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The Symbol ^ in Mathematics: It comes as no surprise that there are a number of different symbols within the study of mathematics. One such symbol is ^, and it holds a special meaning when it is included in mathematical expressions. Answer and Explanation: Become a Study.com member to un...
So if we treat the gray-level value of each pixel here as some variable xi is there some function of all those variables that—when evaluated—tells us what digit the image is of? It turns out that it’s possible to construct such a function. Not surprisingly, it’s not particularly ...
mathwonk said: I disagree that it should be perfectly clear to anyone that the empty set has only one ordering. it was not clear to me for example. it seems to boil down to the rather odd fact (for beginners) that the empty set has exactly one subset. Okay. Perhaps it...
Positive exponents: The power of the exponent is positive. Negative exponents: The power of the exponent is negative. Rational exponents: The power of the exponent is a rational number. Answer and Explanation:1 We are givenf(x)=(25x−8)(4x−...
At first glance, this looks like a somewhat arbitrary problem (as many of Erdös’s problems initially do), as the function is not obviously related to any other well-known function or problem. However, it turns out that this problem is closely related to the parity barrier in sieve theor...
Factorial of a number n is defined the product of all numbers below it till 1 including n. It is denoted as n! Learn how to find the factorial of a number along with formulas and examples here at BYJU'S.