Trigonometric series

If we have cosine series in its product form where angles are in G.P. with the common ratio 2 then multiply both the numerator and denominator by 2 sin (least angle).

Illustration:   Simplify product cosA cos2A×cos2²A .... Cos2^n-1A.

Solution:             cosA× cos2A....cos2^n-1A = 1/2sinA (sin2A.cos2A)×cos2A....cos2^n-1A

                               = 1/2sinA× (sin2A. cos2A)......cos2^n-1A = 1/2² sinA (sin2A. cos2A) ......cos2^n-1A

                              Continue like this, finally we have =            

Note: 

•     where ∏ denotes  products .

• If we have a cosine series or a sine series in its sum form where angles are in A.P. then multiply numerator and denominator both with 2sin( common diffrence/2) .

Email based Trigonometric series Assignment Help -Trigonometric series Homework Help

We at www.expertsmind.com offer email based Trigonometric series assignment help - homework help and projects assistance from k-12 school level to university and college level and engineering and management studies. We provide finest service of Mathematics assignment help and Mathematic homework help. Our experts are helping students in their studies and they offer instantaneous tutoring assistance giving their best practiced knowledge and spreading their world class education services through e-Learning program.

Expertsmind's best education services

• Quality assignment-homework help assistance 24x7 hrs
• Best qualified tutor's network
• Time on delivery
• Quality assurance before delivery
• 100% originality and fresh work