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यदि x^(m)y^(n)=(x+y)^(m+n), (dy)/(dx) ...

यदि `x^(m)y^(n)=(x+y)^(m+n)`, `(dy)/(dx)` निकालें ।

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दिया है, `x^(m)y^(n)=(x+y)^(m+n)`
लघुगणक लेने पर हमें मिलता है ,
`log(x^(m)+log(y^(n))=(m+n)log(x+y)`
दोनों तरफ x के सापेक्ष अवकलित करने पर हमें मिलता है, `(m)/(x)+(n)/(y)(dy)/(dx)=(m+n)/(x+y)(1+(dy)/(dx))=(m+n)/(x+y)+(m+n)/(x+y)(dy)/(dx)`
या `((n)/(y)-(m+n)/(x+y))(dy)/(dx)=(m+n)/(x+y)-(m)/(x)`
या `(nx+ny-my-ny)/(y(x+y))(dy)/(dx)=(mx+nx-mx=my)/(x(x+y))`
या `(nx-my)/(y(x+y))(dy)/(dx)=(nx-my)/(x(x+y))therefore(dy)/(dx)=(y)/(x)`
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KC SINHA-अवकलन -OBJECTIVE QUESTIONS
  1. यदि x^(m)y^(n)=(x+y)^(m+n), (dy)/(dx) निकालें ।

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  2. यदि y=log{log(logx)}, तब (dy)/(dx)=

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  3. यदि y=e^(x+e^(x+e^(x+...oo)) तब (dy)/(dx)=

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  4. यदिxsqrt(1+y)+sqrt(1+x)=0, (dy)/(dx) =

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  5. If y=sqrt(sinxsqrt(sinx+sqrt(sinx+.."to"infty))),then (dy)/(dx) , is ...

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  6. यदि x^(2) + y^(2) = 1 तब

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  7. यदि f(x)=cot^(-1)((x^(x)-x^(-x))/(2)) , then f'(1)=

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  8. यदि y=xtany, तो (dy)/(dx)=

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  9. यदि f(x)=4x^(8), तो

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  10. Differential co-e efficient of sec(tan^(-1)x) is

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  11. The differential co- efficient of e^(x^(3)) with respect to log x is

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  12. यदि x=acos^(4)theta,y=asin^(4)theta तो (dy)/(dx)है? यदि theta=(3pi)/...

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  13. If siny+e^(-xcosy)=e, then (dy)/(dx), at (1,pi) is

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  14. d/(dx)(a^(x)-x^(x))=

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  15. (d)/(dx)(3^(x)+10^(3x-1))=

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  16. If y="sin"^(-1)(2x)/(1+x^(2)),0ltxlt1and0ltylt(pi)/(2), then (dy)/(dx)...

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  17. यदि x^(y)=e^(x-y), तब (dy)/(dx)=

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  18. (d)/(dx)[logsqrt((1-cosx)/(1+cosx)) equals

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  19. If y="sin"^(-1)(2x)/(1+x^(2)),0ltxlt1and0ltylt(pi)/(2), then (dy)/(dx)...

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  20. यदि siny=xsin(a+y) तब (dy)/(dx) =

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  21. निम्नलिखित फलनों का x के सापेक्ष अवकलन कीजिए : sec^(-1).(x^(2)+1)/(x...

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