safax
safax
01-07-2016
Mathematics
contestada
verify the identity cot(x-pi/2)=-tanx
Respuesta :
NiedzielnyMatematyk
NiedzielnyMatematyk
03-07-2016
[tex]\cot(x-\frac{\pi}{2}) = \dfrac{\cos(x-\frac{\pi}{2})}{\sin(x-\frac{\pi}{2})} =\dfrac{\cos(-(\frac{\pi}{2}-x))}{\sin(-(\frac{\pi}{2}-x))} =\dfrac{\cos(\frac{\pi}{2}-x)}{-\sin(\frac{\pi}{2}-x)} =\\=-\dfrac{\sin x}{\cos x} = -\tan x[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 74+ )
Otras preguntas
Two angles are supplementary one angle measure 12 more than the other find the measures
The stated interest rate is the rate quoted in the bond contract used to calculate the cash payments for interest. a. True b. False
How many window coverings are necessary to span 50 windows if each window covering is 15 windows long? 3 4 5 6?
What is the most significant benefit of exercising regularly? physical fitness less fatigue improved mood increased flexibility NextReset
How is the following passage from a cause-and-effect essay organized? Even if the bill is late, the date in the upper-right corner must be entered in the datab
12 less than a number is the same as 6, decreased by 8 times the number
A water cooler holds 1,284 ounces of water. How many more 6 ounce glasses than 12-ounce glasses can be filled from the cooler
Which trna anticodon(s) could decode the mrna codon cag (recall that codons are always written in the 5'—>3' direction and anticodons are written in the 3'—&
A soil sample is 25 percent sand, 55 percent clay, and 20 percent silt. Use the following soil texture triangle to determine the type of soil present in this sa
In act 1 of Romeo and Juliet who says this? "for my mind misgives/ some consequence yet hanging in the stars / shall bitterly begin his fearful date / with this
