Flag Integral Calculus> integral root cotx divided by sinx cosx...
question mark

integral root cotx divided by sinx cosx

rohan , 10 Years ago
Grade
anser 1 Answers
KAPIL MANDAL
Cotx = cosx/sinx. So,
root cot x /sinx cosx = (cosx)(-1/2) (sinx)(-3/2)                 (1)
Take,
 (cosx)(-1/2)=Z                                           (2)
Differentiating,
(sinx)(-3/2) dx = dZ.                                   (3)
Putting this back in equation (1)
(root cot x /sinx cosx ) dx= (cosx)(-1/2) (sinx)(-3/2) dx        = Z dZ
∫ Z dZ = Z/ 2   +  C                                   (4)
C is the integration constant.
Putting the value of Z from (2),
the ans is,
(cosx)(-1) /2  +  C
=( 1 / 2cosx)    + C
 
Last Activity: 10 Years ago
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments