CBSE Class 12-science Answered
Prove that.....
Asked by | 25 Aug, 2008, 08:34: PM
Expert Answer
cos(x/2)*cos(x/4)*cos(x/8)..........=(sinx)/x
taking log on both sides, we get,
log[cos(x/2)]+log[cos(x/4)]....=log [sinx]-logx
taking derivative on both sides wrt x, we get,
-(1/2)(tan[x/2])-(1/4)tan(x/4)-...= -tanx -(1/x)
taking derivative again,
we get the result.
Answered by | 19 Mar, 2009, 08:38: AM
Application Videos
Concept Videos
CBSE 12-science - Maths
Asked by sheensvlog | 27 Mar, 2024, 10:15: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by jprathamesh023 | 23 Mar, 2024, 04:01: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by antra1799 | 18 Mar, 2024, 07:49: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by janusingh736 | 13 Mar, 2024, 04:19: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by nainaadityathakur | 12 Mar, 2024, 01:22: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by suman0987tewary | 27 Feb, 2024, 03:40: PM
ANSWERED BY EXPERT