Math, asked by Sara1305, 9 months ago

prove that
cos(x+y).cos(x-y)=cos²y-sin²x

Answers

Answered by rishu6845

13

Answer:

plzzz give me brainliest ans and plzzzz follow me

Attachments:

Previous Question

Next Question

Similar questions

Science, 5 months ago

carbon dioxide present in air when we liquify air does it contain carbon dioxide please answer it is urgent ...

Math, 5 months ago

4. Write one solution of the equation 2x – y +1=0. whoever will give me satisfy answer I will mark them as brainlist. ........ and I'll follow them ......if I'm satisfied with your answer...

Math, 5 months ago

2. (a) Prove that : (1) tan 15° + cot 15° = 4...

Chemistry, 9 months ago

ii) NaCl and BeО have same internuclear distance but BeO has higher melting point than Naci.

English, 9 months ago

write a letter to your uncle congratulating him buying a new house...

Math, 11 months ago

Number which is equal to sum of their somw factors...

Hindi, 11 months ago

what is bhagvad gita ? I need ans urgently...

Science, 11 months ago

why does water spilt on the floor disappear after sometimes...