Find `(dy)/(dx)`, when:
`y=cosxcos2x cos3x`

Find, (dy)/(dx) when y=x^x .

Find (dy)/(dx) when y=x^y .

Find (dy)/(dx) , when: y=x^(sin2x)

Find (dy)/(dx) when 2x+3y=sin x

Find (dy)/(dx) , when : If y=((cos x - sin x))/((cos x + sin x)) , prove that (dy)/(dx)+y^(2)+1=0 .

Find (dy)/(dx) , when: y=x^((cos^(-1)x))

Find (dy)/(dx) , when 2x+3y=siny .

Find (dy)/(dx) , when y=2^(x)x^(5)

Find (dy)/(dx) , when If y = (cos x + sinx)/(cos x - sinx) , show that (dy)/(dx) = sec^(2) (x + (pi)/(4)) .

Find (dy)/(dx) when : y="cos"^(-1)(a+b cos x)/(b+a cos x)(b gt a)