Math, asked by taruntadepalli1604, 6 months ago

7. If cos’ A + cos' B + cos? C = 1, then show that A ABC is right angled.

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Answered by shraddha837

1

ʜᴏᴩᴇ ɪᴛ ʜᴇʟᴩᴇᴅᴅ ᴜᴜᴜᴜ

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