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0:00 Q1. Find dy/dx if y^x+x^y+x^x=a^b
08:30 Q2. If x=√(a^sin^(-1)t ), y=√(a^cos^(-1)t ) Show that dy/dx=-y/x
10:17 Q4.〖y=cot^(-1)〗[(√(1+sin x )+√(1-sinx))/(√(1+sin x )-√(1-sinx))]
14:23 Q5 Differentiate 〖sin〗^2 x w.r.t.e^(cos x)
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