SOLUTION: How do you Verify the identities: (sin(x))(cos(y))+(cos(x))(sin(y))/(cos(x))(cos(y))-(sin(x))(sin(y))= tan(x)+tan(y)/1-(tan(x))(tan(y))

Question 849365: How do you Verify the identities: (sin(x))(cos(y))+(cos(x))(sin(y))/(cos(x))(cos(y))-(sin(x))(sin(y))= tan(x)+tan(y)/1-(tan(x))(tan(y))
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How do you Verify the identities: (sin(x))(cos(y))+(cos(x))(sin(y))/(cos(x))(cos(y))-(sin(x))(sin(y))= tan(x)+tan(y)/1-(tan(x))(tan(y))
-----
sin(x+y)/cos(x+y) = tan(x+y)
---------------------
Cheers,
Stan H.
-----------------------
RELATED QUESTIONS
sin(x+y)-2sinx+sin(x-y)/cos(x+y)-2cosx+cos(x-y)= tan... (answered by Edwin McCravy)

if x+y=90 degrees which of the following is true? sin x = sin y tan x = tan y sin x (answered by solver91311)

Suppose sin x = 5/7 cos x > 0, sin y = − 1/5 and cos y < 0. Then cos x = cos... (answered by lwsshak3)

cos(sin^−1(x) −... (answered by stanbon)

If ( cos x+ isin x )(cos y+ isin y) = cos (y+x) + isin (y+x) Find the formula: Sin... (answered by ikleyn)

cos(x)tan(x) = sin(x) .. verify (answered by jim_thompson5910)

Suppose sin x = 1/7 cos x > 0, sin y = −2/5 and cos y < 0. Then cos x = cos y (answered by ewatrrr)

Suppose sin x = 1/7 cos x > 0, sin y = −2/5 and cos y < 0. Then cos x = cos y (answered by stanbon)

Suppose sin x = 1/7 cos x > 0, sin y = −2/5 and cos y < 0. Then cos x =... (answered by lwsshak3)