Ask Experts Questions for FREE Help !
Ask
    ronniebelle's Avatar
    ronniebelle Posts: 1, Reputation: 1
    New Member
     
    #1

    Jan 18, 2010, 12:55 PM
    Algebraic proofs
    Prove that
    Ad+bc<ac+bd
    Given a<b
    Given c<d
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
    Expert
     
    #2

    Jan 18, 2010, 01:03 PM

    Let and . Then sub these into ad + because and ac + bd, and see how the two compare.

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Algebraic Proofs [ 3 Answers ]

how do I do this? Fill in the missing information in this Algebraic proof. Two lines intersect. Angle 1 equals ( 3x + 20) . Angle 2 = (5x - 16) , Angles 1 and 3 are vertical angles. The measure of angle 1 = the measure of angle 3. (Vertical Angles are Congruent) a.) _____ = (5x - 16)...

Trigonometry proofs [ 4 Answers ]

how do you prove that tanx+coty / tanxcoty = tany+cotx

Trig proofs [ 1 Answers ]

how do you prove cosx+sinxtanx=secx

Proofs? Identities? [ 4 Answers ]

Some one teach me precal I can't do any of this. Prove the identity: (cosx)(tanx+sinxcotx)=sinx+cos^2x (thats cos squared times x)


View more questions Search