Math, asked by gssidhu4955, 2 months ago

If tan alpha=p and tan Bethas = q prove that cos(alpha+ Bethas)= 1-pq/✓(1+q^2)(1+p^2)

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Answered by kumarsachin49067

1

Answer:

ᴄʜɪᴄ

ᴡᴏᴏ ᴀʟʟ ᴀʟʟ yᴏᴜᴛʜ ʟɪᴇ ᴋɪᴄᴋᴇʀꜱ ᴄʜᴇʀᴜʙ ᴅᴏᴜʙᴛꜰᴜʟ

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