Math, asked by Jitesh111, 1 year ago

If A=45°,verify that cos3A=4cos3A-3cosA

Answers

Answered by rick13

3

This is your Answer . By this Method

Attachments:

Jitesh111: very much thankyou you help me

Previous Question

Next Question

Similar questions

Math, 7 months ago

Simplify. The following (5+2) ...

Math, 7 months ago

3 ti bognagser jogfol koto ...

Math, 7 months ago

a postman delivered 28573 letters in January and 12391 letters in febuary .how many letters did he deliever in two months . ans is 41144he iska ans...

Environmental Sciences, 1 year ago

the leakage of chlorofluorocarbon led to bhopal tragedy? True or false...

Math, 1 year ago

find the sum fast plz answer it...

Biology, 1 year ago

suggest five measures that can be taken at global level for the preservation and control of diabetes and its complications...

Math, 1 year ago

the total surface area of a cuboid is 1332cm if length breadth and height are in the ratio 6:5:4, find its dimensions...

Math, 1 year ago

in figure ABCD is a square. if angle PQR=90 and PB=QC=DR, prove that angle QPR=45.Plz answer it fast i need it right now...