Prove this : ↑ It's necessary for me and you too !
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4
if you don't mind I think you can do before my last step. you can prove it bcoz I m in class 12 or my online class is started . please sry if you don't get the answer please ask me.
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Jayesh9960485:
Just edit the last one!
where is the edit option
can you resend the question please
can you repost the question please
can you resend the question please
But that'll waste my points !
I won't!
You edit it !
please for me repost it
you are in which class
Answered by
9
Algebric identities used in this solution.
=> ( a + b ) ( a - b ) = a² - b²
=> ( a - b )² = a² + b² - 2ab
Triogonometric identities used in this solution.
=> sec²∅ - 1 = tan²∅
=> sec∅ = ( 1/cos∅ )
=> tan∅ = ( sin∅/cos∅ )
=> sin²∅ + cos²∅ = 1
=> sin²∅ - 1 = ( -cos²∅ )
=> ( a + b ) ( a - b ) = a² - b²
=> ( a - b )² = a² + b² - 2ab
Triogonometric identities used in this solution.
=> sec²∅ - 1 = tan²∅
=> sec∅ = ( 1/cos∅ )
=> tan∅ = ( sin∅/cos∅ )
=> sin²∅ + cos²∅ = 1
=> sin²∅ - 1 = ( -cos²∅ )
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9th
ooo
from where
Okay Bye
Can't tell personal data
ok bye but it's not personal
noticed that 9th is the basics of 11
no
he is ahead of his class
He is in 9 but also studying 10 course
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