Math, asked by mahendrakeelka1234, 1 year ago

Prove that cotA-tanA= (1-sin^2A)/sinAcosA

Answers

Answered by TheLifeRacer
11
Hi ! .

Solution :-

From LHS

=> cotA - tanA

=> cosA / sinA - sinA / cosA

=> cos²A - sin²A / sinA * cosA

=> ( 1 - sin²A ) - sin²A / sinA * cosA

=> 1 - 2sin²A / sinA * cosA

LHS = RHS prooved ♻

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Hope it helps you !!

@Rajukumar111



Answered by Ashishkumar098
4
ᴇʟʟᴏ!!

ʜᴇʀᴇ's ʏᴏᴜʀ ᴀɴsᴡᴇʀ

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ᴛᴏ ᴘʀᴏᴠᴇ , ᴄᴏᴛ ᴀ - ᴛᴀɴ ᴀ = ( 1 - sɪɴ^2 ᴀ ) / sɪɴ ᴀ ᴄᴏs ᴀ

ɴᴏᴡ , ʟ . ʜ . s

= ᴄᴏᴛ ᴀ - ᴛᴀɴ ᴀ

= ᴄᴏs ᴀ / sɪɴ ᴀ - sɪɴ ᴀ / ᴄᴏs ᴀ

= ᴄᴏs^2 ᴀ - sɪɴ^2 ᴀ / sɪɴ ᴀ . ᴄᴏs ᴀ

= ( 1 - sɪɴ^2 ᴀ ) - sɪɴ^2 ᴀ / sɪɴ ᴀ . ᴄᴏs ᴀ

=  1 - sɪɴ^2 ᴀ - sɪɴ^2 ᴀ / sɪɴ ᴀ . ᴄᴏs ᴀ

=  1 - 2 sɪɴ^2 ᴀ / sɪɴ ᴀ . ᴄᴏs ᴀ

ᴀɴᴅ ɢɪᴠᴇɴ , ʀ . ʜ . s = ( 1 - sɪɴ^2 ᴀ ) / sɪɴᴀ . ᴄᴏsᴀ

sᴏ , ʟ . ʜ . s = ʀ . ʜ . s [ • ʜᴇɴᴄᴇ ᴘʀᴏᴠᴇᴅ ]

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ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʏᴏᴜ ᴅᴇᴀʀ!

★ ᴅᴇᴠɪʟ ᴋɪɴɢ
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