Proofs Q (1 Viewer)

[krypticlemonjuice]

Why is the answer to this q B?

 

[scaryshark09]

B is false cause its an 'if and only if statement'.
if x=y, then sinx = siny - this is correct.
but also...
if sinx = siny, then x=y - this is incorrect. An example of this is sin(0) = sin(pi), but 0 does not equal pi.

 

[carrotsss]

An equivalence means that it must work both ways, and so the reverse statement

must also be true, but it isn’t. Say for example, x=2pi and y=0. While , so the statement isn’t true

B is false cause its an 'if and only if statement'.
if x=y, then sinx = siny is correct.
but...
if sinx = siny, then x=y is incorrect. An example of this is sin(0) = sin(pi), but 0 does not equal pi.

screw you I was halfway through typing

 

[synthesisFR]

An equivalence means that it must work both ways, and so the reverse statement

must also be true, but it isn’t. Say for example, x=2pi and y=0. While , so the statement isn’t true



screw you I was halfway through typing

this dude just copyrighted ur intellectual property @scaryshark09 and is restating it right after u did
i wouldn't take that if i were u
carrots u now have no respect left in my eyes