If 13theta=pi,show that costhetacos2thet...

If `13theta=pi`,show that `costhetacos2theta cos3theta cos4theta cos5theta cos6theta=2^-6`

Topper's Solved these Questions

MODEL QUESTION PAPERS-SET 4
UNITED BOOK HOUSE|Exercise EXERCISE|47 Videos
MODEL QUESTION PAPERS-SET 6
UNITED BOOK HOUSE|Exercise EXERCISE|47 Videos

Similar Questions

Explore conceptually related problems

Prove that, If " "15 theta = pi, "show that," cos theta cos2 theta cos3theta cos 4theta cos5 theta cos6theta cos7theta =1/2^(7)

If 13 theta =pi , " prove that " cos theta cos 2theta cos3 theta cos4theta cos5 theta cos6 theta =1/2^(6)

4costheta cos 2theta cos3theta - 2cos 4theta=1

if 13theta=pi ,then show that cos3theta+cos5theta+2costheta.cos9theta=0

cos 4theta = cos 3theta - cos2theta

sin4theta cos 2theta = cos5theta sin theta

If 13theta =pi " show that"cos 3 theta + cos 5 theta + 2 cos theta cos 9theta = 0

If sin2 theta = cos 3 theta then theta =

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

Show that cos^6theta+sin^6theta=1/8(5+3cos4theta)

UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 5-EXERCISE

Find the mean deviation with respect ' to mean value :18,22,33,42,53,...
Text Solution
|
Find the HCF of 15, 40, 60 with the help of set theory
Text Solution
|
If 13theta=pi,show that costhetacos2theta cos3theta cos4theta cos5thet...
Text Solution
|
Solve:sinx-sin2x=cos2x-cosx
Text Solution
|
Show that by mathematical- induction :x^3+(x+1)^3+(x+2)^3is divisible ...
Text Solution
|
If z = x + iy and arg ((z-1)/(z+1))=(pi)/(4), then the locus of (x, y)...
Text Solution
|
If the co-efficient of the (3r+1) th term is equal to the co-efficient...
Text Solution
|
Find the sum of 1 + 5 + 12 + 22 + 35 +….upto n term.
Text Solution
|
A straight line passes through A(1, 2) and makes an angle theta with t...
Text Solution
|
Find the equations of the lines, which cut-off intercepts on the axes ...
Text Solution
|
The equation of circum circle of an equilateral triangle is x^2+y^2+2g...
Text Solution
|
A straight line passes through (h, k) and the middle point of the also...
Text Solution
|
Evaluate :lim(xrarr0)(tan2x-x)/(3x-sinx)
Text Solution
|
From definition, differentiate cos4x at 'x=pi/6,will respect to x.
Text Solution
|
Prove the following by contradiciton ."The sum of a rational and an ir...
Text Solution
|
Show that sqrt7 is an irrational, (use the method of contradiction)
Text Solution
|
If the variance of lst.n even natural numbers is 65, find the value of...
Text Solution
|
In on examination the probability of a student passed in physics is 2/...
Text Solution
|
If p sin (alpha+beta) = cos (alpha -beta), show that1/(1-p sin 2alpha)...
Text Solution
|
Solve :sqrt(2cos^2x+1)+sqrt(2sin^2x+1)=2sqrt2
Text Solution
|