Math, asked by ParnikaD, 1 year ago

(cos x + cos y)^2 + (sin x +sin y)^2 = 4 cos ^2 (x-y)/2
Prove

Answers

Answered by bijitkalita48

4

Step-by-step explanation:

hope it helps you.......

Attachments:

Answered by apoorva200

3

Step-by-step explanation:

plz mark me as brainliest and plz follow me

Attachments:

Previous Question

Next Question

Similar questions

Physics, 6 months ago

dom and nung hers nothing but good has gone out from me to them. The birds nest in me. I send a most lovely shade upon the grass. Men rest against my trunk and wild creatures rub themselves against me. The earth blesses me and sends up new plants and herbs under my protective arms. I bind the earth with my strong roots. Children olay at my feet, and women returning from the fields seek refuge in...

Hindi, 6 months ago

केशव दास जी द्वारा रचित वंदना में किस-किस की वंदना की गई है...

Hindi, 6 months ago

9. "मेरे तो गिरधर गोपाल, दूसरो ना कोई जा के सिर मोर मुकुट, मेरो पति सोई छडि दयी कुल की कानि, कहा करि हुँ काई? संतन ढिग बैटि-बेटि लोक-लाज खोयी अंसुवन जल साँचि-सीचि, प्रमि बलि बायी (क) काव्यांश की भाषा की दा विशेषताओं का उल्लेख कीजिए। (ख) 'प्रेम-बोलि बोयी में कौन-सा अलंकार है नाम लिखिते हुए अलाकार का सनझाइय barj bhashaa me likhee hai...

Math, 1 year ago

Which of the following numbers is a prime number? a 551 b 233 e 220 d 541...

English, 1 year ago

abstract noun of just...

Biology, 1 year ago

Diabetes insipidus is caused by deficiency of a) Calcitonin b) oxytocin c) Prolactin d) Vasopressin...

Biology, 1 year ago

Exopthalmic goiter is also known as a) Grave's disease b) Gull's disease c) Simple goiter d) Cushings disease...

Biology, 1 year ago

ADH is secreted by ______ a) Adrenal gland b) Thyroid c) Hypothalamus d) Pancreas...