Math, asked by anniyama, 1 year ago

If a+b+c=180 then prove that cos a/2+cos b/2 -cos c/2=4 cos(pi+a/4)cos(pi+b/4)cos(pi-c/4)

Answers

Answered by rishu6845

4

Answer:

plzzz give me brainliest ans and plzzzz follow me

Attachments:

Previous Question

Next Question

Similar questions

English, 6 months ago

Translate the following word into your mother tongue coward, kind,thorn, ignore,divine ,budge...

English, 6 months ago

ore bhai!!!! 68 people watching my question....

Social Sciences, 6 months ago

what is the use of mica in electrical and electronic industry...

Math, 1 year ago

find the acute angle thita for which (i) sin2thita = 1...

Physics, 1 year ago

$\huge\mathcal{Hlw\:Guys!}$ $<b>$ A coil of insulated copper wire is connected to a torch bulb.State the likely 'response' of the bulb if a bar magnet is- ● Pushed into the coil? ● Pulled out of the coil? ●Held stationery within the coil...

English, 1 year ago

You are Mukul your school has organised a debate on social media and its effect and you will be participating from your school prepare your views against the motion...

Physics, 1 year ago

change of state of energy electric iron...

English, 1 year ago

write a note of brother and sister love what is the REALTIONSIP between brother and sister write a short note on ur experience ❤❤❤❤...