Math, asked by Drishtijoshi1, 1 year ago

please tell me 3 question given above....

Attachments:

Answers

Answered by Deepap2

1

if A+B+C=R,prove that cos2A +cos2B +cos2C +1 = _4cos A. cos B. cos c.

Drishtijoshi1: can u please explain.....

Previous Question

Next Question

Similar questions

Hindi, 8 months ago

Please answer this I'll mark the correct answer brainliest.

Math, 8 months ago

please tell Step by Step please.. what is the smallest number by which 2058 may be multiplied so that the product is a perfect cube...

English, 8 months ago

Paid for Life Insurance premium (self) ...

English, 1 year ago

everything comes if a man works hard.(End:hardworking man)...

Math, 1 year ago

if the mean of 16, 14, x, 23, 20 is 18, find the value of x.

Chemistry, 1 year ago

The molecules of water have more energy as compare to molecule of ice at the same temperature.justify this statement.

English, 1 year ago

how did two boys and lucia suffer after the great ruin of their family?

Math, 1 year ago

show that for any postive odd integer is of form 4q+1 or 4q+3,where q is some integer...