i want answer by step by step I will mark u BRAINLIEST
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Anonymous:
π/4 -x/2
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your answer is in the attachment.
hope it helps u ✌✌
mark it as brainlist and follow me ❤❤
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okkkk
π/4 = 180/4 = 45
I will mark u as brainlist
Ok thanks
No Need to mark my answer as brainlist.... if u understand it properly that's a lot for me
okk thanks
r u girl or boy
boy.
Ok what u do
i m asking about your study
Answered by
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Heya
_______________________________
Cos x = Cos²x/2 - Sin² x/2
And
( 1 - Sinx ) = ( Cosx/2 - Sinx/2 )²
=>
Tan-¹ { Cos²x/2 - Sin²x/2} / (Cosx/2-Sinx/2)²
=>
Tan-¹ { Tan ( π/4 + x/2 ) }
=>
π/4 + x/2
_______________________________
Cos x = Cos²x/2 - Sin² x/2
And
( 1 - Sinx ) = ( Cosx/2 - Sinx/2 )²
=>
Tan-¹ { Cos²x/2 - Sin²x/2} / (Cosx/2-Sinx/2)²
=>
Tan-¹ { Tan ( π/4 + x/2 ) }
=>
π/4 + x/2
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