Math Question

AgaBoogaBoo · Feb 15, 2005

sin400sec(-50) becomes sin40 * 1/cos(-50)

shouldn't that equal -1?

Answer key says 1, not sure why though

everman · Feb 15, 2005

agnitrate · Feb 15, 2005

40? 50? Who the hell past grade 8 uses degrees?

-silver

suse920 · Feb 15, 2005

Originally posted by: OMGWTFBBQ
42

Toastedlightly · Feb 15, 2005

Originally posted by: agnitrate
40? 50? Who the hell past grade 8 uses degrees?

-silver

Long live radians!

Random Variable · Feb 15, 2005

the cosine of -50 degrees is positive

mygumballs · Feb 15, 2005

cos ( x ) = sin ( x + 90 degrees)
therefore the 2 are the same number and their ratio is one

AgaBoogaBoo · Feb 15, 2005

Originally posted by: Vespasian
the cosine of -50 degrees is positive

Thanks

AgaBoogaBoo · Feb 15, 2005

Originally posted by: mygumballs
cos ( x ) = sin ( x + 90 degrees)
therefore the 2 are the same number and their ratio is one

Ah, alright, thanks