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140 Answered Questions for the topic Proofs

Proofs Math

09/25/19

How to prove this statement?

Assume you have functions T and S such that T(n) =O(S(n)). For the following statement, decide whether you think it is True or False. If you think the answer is True, prove it, otherwise, provide a... more
Proofs

09/08/19

How would I answer this proof on 5 lines?

prove that Q is the mid point of PR is PQ is equal to 17, QR is equal to 17, and Q is between P and R

Give a recursive definition of a language L_bad that does not contain either three 0s or three 1s in a row.

This assumes that ∑ = {0,1}For example,101101 ∈ Lbad011110∉ Lbad
Proofs Geometry

08/06/19

Given: ab is congruent to db and eb is congruent to db. Prove angle D is congruent to angle A using a formal proof

Formal Proof that I need help with please answer quick I have a due date of today and cannot fail this please help whoever is out there
Proofs Trigonometry

05/26/19

Prove that sin(2α) + sin(2θ) + sin(2pi- 2α-2θ)= 4sin(α)sin(θ)sin(pi-α-θ)

This was a question from my homework that I can't do at all!
Proofs Math Geometry

05/24/19

Open ended, Math help Please!?

 below is an isosceles trapezoid. Diagonals and  intersect at point and _____ _____ _____ _____

Why is (a | b ) equivalent to a - (a & b) + b?

I was looking for a way to do a BITOR() with an Oracle database and came across a suggestion to just use BITAND() instead, replacing BITOR(a,b) with a + b - BITAND(a,b).I tested it by hand a few... more
Proofs Math Philosophy

05/15/19

Intro to Logic- Use Natural Deduction to prove Dist E

Hi everyone, Can someone please help me. I have to use natural deduction to prove Dist E for both 'or' and 'and'These are the two questions: 1: Dist E-Ex(Px v Qx) premiseConclusion: ExPx v ExQx2:... more

05/05/19

mathematical proof

Claim: If a(sub)n converges to A then (c+a(sub)n) converges to c+A
Proofs Philosophy Logic

04/15/19

Is there a way to understand material implication without truth-tables?

I understand how, given the truth-functional definition of the conditional, any sentence of the formIf P then Q is truth-functionally equivalent to Either not-P or QOr, to put it symbolically:  P →... more
Proofs Geometry

04/02/19

Given: Segment AC is congruent to segment AD, segment CB is congruent to segment DB. Prove: Segment AB bisects angle CAD

The triangle looks like this but it's not the question
Proofs Geometry

03/04/19

Fill in the blanks in the proofs ASAP!!

We are given that diagonals AC congruent to BD It can be stated that   because they are opposite sides of a parallelogram. By the Reflexive Property of Congruence, . Thus, ____1_____ by... more
Proofs Math

01/19/19

Two column proof

Given: ∆SVX ≈ ∆ UTX and line SV || line TUProof: VUTS is a parallelogramStatemente | Reason 1. ∆SVX ≈ ∆UTX | 5. Given 2. ____________ | 6. Given 3. ____________ | 7.... more
Proofs Geometry

12/19/18

m∠1+m∠2+m∠3=180°

can someone please help!!!idk what it means..
Proofs

12/11/18

Consider the function f(x) = x2 + 3x for x ∈ ℝ and 0 < x < 4. Prove that limx→2 f(x) = 10.

Consider the function f(x) = x2 + 3x for x ∈ ℝ and 0 < x < 4. Prove that limx→2 f(x) = 10.
Proofs Math Geometry

12/10/18

how do you prove a parallelogram with given and proof statements

given and proof statements-given: <1 and <2 are supplementary; <2 and <3 are supplementary prove: PQRS is a parallelogram therom: same-side interior angles
Proofs

12/09/18

Proof by the contradiction method

Proof by the contradiction method that there are no positive integer solutions to the Diophantine equation x^2-y^2=10
Proofs Math Geometry

12/05/18

geometry proofs

Given: <DCA is congruent to <BCA, <B is congruent to <DProve: segment AB is congruent to segment AD
Proofs

11/08/18

Help with Proofs

Is there a specific way or order I can follow when needing to write a proof? Here’s my problem: I don’t know where to start with them. For example, if I knew the answer to a proof, I understand why... more
Proofs Math Geometry

10/22/18

Find the statements and Reasons to this proof

Premises:≈P→(Q→≈W)≈S→Q≈TP→TW→SConclusion:W→SI don't really understand how to do this and I have a test coming up so any help would be greatly appreciated.

10/12/18

What is the value of x? Justify each step. (Proofs)

What is the value of X? Justify each step.AC=32(there is an image of a line segment- AB=2x and BC=6x+8)(please explain why you put each step with as much detail as you can provide)AB+BC=AC.... more

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