888 Answered Questions for the topic discrete math

Discrete Math Discrete Mathematics

02/03/14

sum of the first n integers
Use the formula for the sum of the first n integers, to evaluate the following:a) 3 + 6 + 9 + 12 + 15 + 18 + …. + 303b) 6 + 7 + 8 + 9 + 10 + 11 + …. + 102
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Discrete Math Discrete Mathematics

02/03/14

mathematical induction
Use mathematical induction to show that change of at least 14c can be obtained using 3c and 8c coins. Show at least from 14c to 27c
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Discrete Math Discrete Mathematics

01/29/14

Write the following as a ratio of two integers
Write the following as a ratio of two integersa) 0.222222222222b) 3.6666666
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Discrete Math Discrete Mathematics

01/27/14

i have no idea about this?????????????
If n=4k+3 does 8 divide n^2-1?
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Discrete Math Discrete Mathematics

01/27/14

divisable by 4????????????/
Is 6m(2m+10) divisible by 4?
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Discrete Math Discrete Mathematics

01/27/14

any odd integer????
Prove that is x is any odd integer then ?(-1)?^x = -1
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Discrete Math Discrete Mathematics

01/27/14

determine whether the property is true???
Determine whether the property is true for all integers, true for no integers, true for only some integers. ?(x+y)?^2 = x^2 + y^2
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Discrete Math Discrete Mathematics

01/20/14

mathematical notation
Write the following is mathematical notationa) All cats are friendlyb) Some horses are unrideable
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Discrete Math Discrete Mathematics

01/20/14

rewrite the following statements
Rewrite the following statements in the for ∀x, if ______ then _____ . a)All Perl scripts have more than 30 lines b)All friends are programmers c)All students have a GPA greater than 2.0
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Discrete Math Discrete Mathematics

01/20/14

computer math
. Find the truth set for the following predicates: Hint: answer should be a { set } a) 8/x where x is an integer,the result is in the domain N b) 8 ≤ p^3 ≤ 125 the result is in the domain Z
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Discrete Math

02/22/13

If the right angled triangle t, with sides of length a and b and hypotenuse of length c, has area equal to c^2/4, then t is an isosceles triangle.
discrete math
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Discrete Math

11/09/12

What is the original message encrypted using the RSA system with n = 53 * 61 and e = 17 if the encrypted message is 3185 2038 2460 2550
To decrypt, first find the decryption exponent d, which is the inverst of e = 13 modulo 42 * 58. Please show the answer with great detail so I understand how you got the answer
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Discrete Math

11/09/12

Encrypt the message ATTACK using the RSA system with n = 43 * 59 and e = 13, translating each letter into integers and grouping together pairs of integers
I need the full detail of how you got the answer so I know how to do the problem for the future
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