Math, asked by pankaj146, 1 year ago

prove that cosA+cos2A+cos3A=3cos3A

Answers

Answered by IndraNeel1

0

It's wrong.... you can never prove that atleast u have to put any condition

Previous Question

Next Question

Similar questions

Science, 8 months ago

The desirable property of an instrument such that it produces same results at some other place or time by fabricating same setup, is known as Accuracy Precision Reproducibility Repeatability ...

Math, 8 months ago

classify the following numbers as rational or irrational. 1..root 3 +root 2...

English, 8 months ago

Change the following sentence into positive degree Diana ran faster than Phillippe.

Chemistry, 1 year ago

identify least stable ion among the following a. Li- b. Be- c. B- d. C- can any one tell reason...

Science, 1 year ago

What is latent heat?

Math, 1 year ago

7. In an election, there are a total of 80000 voters and there are two candidates, X and Y. 80 % of the voters go for polls out of which 60 % vote for X. How any votes does Y get?

Math, 1 year ago

the ferris wheel at the school fair has radius of 16m. it revolves at the rate of one revolution per 1min. A rider will travel from the bottom of the wheel to a point 8 vertical metres above the bottom in _________ seconds?

Physics, 1 year ago

a stretched string of mass 20 grams vibrates with a frequency of 30 Hertz in its fundamental mode and the supports are 40 cms apart. The amplitude of vibrations at the antidote is 5 Cms. calculate the velocity of propogation of the waves in the string as well as the tension on it answer this quesstion...