cos(n+y)dy=dn

cos(x+y)dy=dx

int(tan y)/(cos y)dy

If x cos (a + y)=cos y then prove that [dy/dx = cos^2 (a+ y) /sin a] . Hence show that [sin a (d^2y /dx^2) + sin 2(a+ y) dy/dx =0] .

int (cos n-sin n)/(cos n+sin n)dn

Sketch the graphs of the following functions on the same scale. y=cos xa n dy=cos(x-pi/4) y=cos2xa n dy="cos"2(x-pi/4) y=cos xa n dy=cos(x/2)

I=int(sinn)/((1-cos n)^(2))dn

If (cos x)^(y) = (cos y)^(x) , "then" (dy)/(dx) is equal to

Find (dy)/(dx) of the functions (cos x)^(y)= (cos y)^(x)

If (cos x)^y = (cos y)^x then find dy/dx .

If (cos x)^y = (cos y)^x , find dy/dx .