Home
Class 11
MATHS
Using induction, prove that cos theta ·...

Using induction, prove that `cos theta · cos 2theta · cos 2^2 theta. ... cos 2^(n-1) theta =(sin2^n theta)/(2^n sin theta)`

Text Solution

AI Generated Solution

To prove the statement using mathematical induction, we will follow these steps: ### Step 1: Base Case We need to verify the statement for \( n = 1 \). The left-hand side (LHS) for \( n = 1 \) is: \[ \cos \theta = \cos 2^{0} \theta ...
Promotional Banner

Topper's Solved these Questions

  • PRINCIPLE OF MATHEMATICAL INDUCTION

    NCERT EXEMPLAR ENGLISH|Exercise OBJECTIVE TYPE QUESTIONS|5 Videos
  • PRINCIPLE OF MATHEMATICAL INDUCTION

    NCERT EXEMPLAR ENGLISH|Exercise OBJECTIVE TYPE QUESTIONS|5 Videos
  • PERMUTATIONS AND COMBINATIONS

    NCERT EXEMPLAR ENGLISH|Exercise Matching The Columns|5 Videos
  • PROBABILITY

    NCERT EXEMPLAR ENGLISH|Exercise Matching The Columns|2 Videos

Similar Questions

Explore conceptually related problems

Prove that cos theta cos 2 theta cos 4 theta…. Cos 2 ^(n-1) theta = ( sin ( 2 ^(n) theta))/( 2 ^(n) (sin theta)) .

For all n in N, cos theta cos 2theta cos 4theta ....cos2^(n-1)theta equals to

If (2^n+1)theta=pi then 2^n costheta cos2theta cos2^2 theta .......cos 2^(n-1) theta=

Prove that cos^2 theta cosec theta+sin theta=cosec theta

cos ^(2) 2 theta - sin ^(2) theta = cos theta . cos 3 theta.

Find the value of cos theta. cos 2theta. cos 2^(2)theta . cos 2^(3)theta"……." cos 2^(n-1) theta is

1 + (cos 2 theta + cos 6 theta)/(cos 4 theta) = (sin 3 theta)/(sin theta).

Prove that : (cos 4theta + cos 3theta + cos 2theta)/(sin 4theta + sin 3theta + sin 2theta) = cot 3theta

Prove that (1 - cos 2 theta)/( sin 2 theta) = tan theta.

If cos theta + sin theta =sqrt(2) cos theta prove that cos theta -sin theta =sqrt(2) sin theta