CBSE Class 12-science Answered
In NCERT book Ex 7.2 question no.5
I am unable to understand that sin2(ax+b)/2.then we take 2(ax+b)=t
but 2adx = dt
How and from where the 'a' comes.please explain
Asked by Abhishek Poonia | 05 Nov, 2012, 09:34: AM
Expert Answer
We can write sin (ax+ b) cos (ax + b) as sin2(ax+ b)/ 2.
(By using the formula sin 2A = 2 sin A cos A)
Now, we substitute 2(ax + b) = t
So, 2ax + 2b = t
Differentiating both sides, we get:
2a dx = dt
Now, with this substitution, we can easily integrate the given function.
Answered by | 05 Nov, 2012, 11:22: AM
Concept Videos
CBSE 12-science - Maths
Asked by jprathamesh023 | 23 Mar, 2024, 04:01: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by atulmishra514 | 26 Jan, 2024, 10:15: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by aalavarshitha2005 | 21 Jan, 2024, 05:28: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by atharvaparkar04 | 17 Dec, 2023, 12:59: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by shashinayaka032 | 05 Dec, 2023, 12:46: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by manyarajawat1 | 06 Nov, 2023, 05:03: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by ps9680677 | 26 Oct, 2023, 11:47: AM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Asked by manasvichandel49 | 19 Oct, 2023, 08:53: AM
ANSWERED BY EXPERT