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Find Derivative of tan x from …

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Find Derivative of tan x from first principle.

Posted by Tushar Rathi 5 years, 4 months ago

CBSE > Class 11 > Mathematics

3 answers

Pragati Gola 5 years, 4 months ago

f (x+h)=lim h->0 tan (x+h)-tanx /h ; lim h->0 sin (x+h-x)/cos (x+h)cosx .h ; lim h->0 sin h/h cos (x+h)cosx ; lim h->0 1/cos (x+h)cosx ; Putting h=0 1/cos (x+0)cosx ; 1/cosx.cosx ; 1/cosx^2 ; Secx^2

0Thank You

Nancy Rajput 5 years, 4 months ago

its sec^2 x

0Thank You

Akash Kumar 5 years, 4 months ago

Answer

2Thank You

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CBSE > Class 11 > Mathematics