Math, asked by AnkitBhardwaj420, 11 months ago

cos x + cos y ka man bataen

Answers

Answered by debismita

1

Answer:

cosx+cosy=2cos x+y/2×cos x-y/2okkkk

thank you☀️

Attachments:

Answered by niteshmourya55p2picl

0

Answer:

2cos(x+y/2)cos(x-y/2)

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