sdtev sdtev
  • 21-07-2016
  • Mathematics
contestada

verify the identity: (1 -sinx) / cosx = cosx / (1 +sinx)

Respuesta :

konrad509
konrad509 konrad509
  • 21-07-2016
[tex]\dfrac{1-\sin x}{\cos x}=\dfrac{\cos x}{1+\sin x}\\ \cos^2 x=(1-\sin x)(1+\sin x)\\ \cos^2 x=1-\sin^2 x\\ \sin^2 x+\cos ^2 x=1[/tex]

It IS the identity.
Answer Link

Otras preguntas

Keith paid a total of $48 for 4 movie tickets. used a coupon for $4 off entire order. the equation below can be used to determine the regular price of one movie
what is the relationship between reflecting an exponential function over an axis and its equation? please give a nice answer. <3
Calcium carbonate, caco3(s), decomposes upon heating to give cao(s) and co2(g). a sample of caco3 is decomposed, and the carbon dioxide is collected in a sealed
the price of a sweater increased from $15 to $21 what is the percent of change?
Which is the best estimate for the mass of a pair of eyeglasses? A. 25 grams B. 250 grams C. 25 kilograms D. 250 kilograms
The base parking charge at a mall on a Sunday is $2 per hour. If a vehicle is parked for 4 hours, only $6 is charged. What percentage is saved on the base charg
angles G and H are complementary. if m<G =3x +6 and m<H=2x-11, what is the measure of each angle?
1. Explain the term popular sovereignty.
When ever you double click a file on the desktop what will appear?
You are planning to place an ad in a local newspaper. The size of the ad is 5 inches long by 4 columns wide. The newspaper's rate per column inch is $18. How mu