Q. 175.0( 1 Vote )

Evaluate the foll

Answer :


Formula used:



where,




Let,



Here, f(x) = cos x



Now, by putting x = a in f(x) we get,


f(a) = cos a


f(a + h)


= cos (a + h)


Similarly, f(a + 2h)


= cos (a + 2h)



We know,



Therefore,




{ nh = b – a}














{ 2 cos A sin B = sin(A + B) – sin(A – B)}







Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

<span lang="EN-USRD Sharma - Volume 2

Evaluate the follRD Sharma - Volume 2

Evaluate the follRD Sharma - Volume 2

Evaluate the follRD Sharma - Volume 2

Evaluate the follRD Sharma - Volume 2

Evaluate the follRD Sharma - Volume 2

Evaluate the follRD Sharma - Volume 2

Evaluate the follRD Sharma - Volume 2

Evaluate the follRD Sharma - Volume 2