1. (log sin y+y tanx)/(log cos x-x cot y)
2. (log sin y-y tanx)/(log cos x+ cot y)
3. log sin y/log cos x
4. log cos x/log sin y
(log sin y+y tanx)/(log cos x-x cot y)
1.
2.
3.
4. none
1. 1/y
2. 1/x
3. 1/2x-1
4. 1/2y-1
1/2y-1
1. cos x/y-1
2. cos y/x-1
3. cos x/2y-1
4. cos y/2x-1
cos x/2y-1
1. y2/x(1+y log x)
2. y2/x(1-log y)
3. y/x(1+y log x)
4. y/x(1-log x)
y2/x(1-log y)
1. y2/sin x(1-log y)
2. y2sin x/(1-log y)
3. y2cot x/1-log y
4. y2tan x/(1-log y)
y2cot x/1-log y
1. y
2. 1/y
3. 1/1-y
4. y/1-y
y/1-y
1. y/2y-x
2. y/x+2y
3. y/x-2y
4. y
y/2y-x
1. –y2/x(2-ylog x)
2. –y2/(2+ylog x)
3. y2/(2-ylog x)
4. y2/x(2-ylog x)
y2/x(2-ylog x)
1. y2log y/x(1-y log x log y)
2. log y/1-y log x
3. log x/1+y log y
4. none
y2log y/x(1-y log x log y)