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Differential Calculus

Blazing goIITian

Joined:	31 Jan 2007
Post:	515

13 Mar 2008 16:21:10 IST

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302

differentiate:

None

1)tan^-1 ((^{[ ]}

a^2-b^2)sinx/b+acosx)

2)tan^-1 (5ax/a^2-6x^2)

3)cos^-1 ((a+bcosx)/(b+acosx))

just give me the hints

rates assured

ans awaited

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Comments (2)

BALGANESH

Blazing goIITian

Joined: 21 Dec 2007

Posts: 1025

13 Mar 2008 17:16:19 IST

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use this formula d( tan^-1x)/dy = 1/(1+x²)
and use chain rule

and d(cos^-1x)/dy = -1/

(1-x²)
use chain rule

varsha valli g.

Blazing goIITian

Joined: 31 Jan 2007

Posts: 515

14 Mar 2008 09:23:37 IST

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shudnt we use any substitutions?
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