Math, asked by simranrose3185, 1 year ago

Solve the equation cos a cos 2a cos 3a =1/4

Answers

Answered by samshad2

5

you will get cos ^2(2a )=3/4.therefore, cos 4A =(3/4)^(1/2).

Previous Question

Next Question

Similar questions

Chemistry, 7 months ago

when do you take an antacid ...

Political Science, 7 months ago

Which of the following statements about the judiciary is false? * A. Judiciary is independent of executive. B. Any citizen cn approach the courts if his rights are violated. C. Every law passed by the Parliament needs approval of the Supreme court. D. Judiciary can strike down a law if it goes against the spirit of the constitution.

Chemistry, 7 months ago

1. What is the oxidation number of nitrogen in (a) nitric acid (6) nitrous acid (c) nitric oxide (d) nitrous oxide (e) ammonia () Na2 . 2. What is the oxidation number of the underlined atoms in the following? KMnO4 ; Na2Cr2O7 ; Fe3O4 ; KClO, PO4³- ; CCl4 . 3. What are the oxidation numbers of the following ? (a) Cr in CrO4²- (b) C in C6H12O6 (c) I in IF7 (d)O in O3 4. Determine the oxidation...

Environmental Sciences, 1 year ago

Solid waste management case study in meerut...

Sociology, 1 year ago

Term blood diamonds is associated with the conflict...

Economy, 1 year ago

Class 11 Economics: Indian Economic Development (V. K. Publications) Indian agriculture is extremely backward despite the fact that it is of significant importance in the Indian economy. Explain.

Math, 1 year ago

My query is how to write x raised to 2 or y raised to 3 ?? x^2 or y^3 like this ?? Help me evry1 :)...

Physics, 1 year ago

a stone and earth attracts each other with an equal and opposite force. why then we see only the stone falling towards tge earth but not the earth rising forwards the stone.