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Heya
_______________________________
Replace 2 - Sin² x = 2 - ( 1 - Cos² x )
= 1 + Cos² x
And
Replace Tan² x by Sin² x / Cos² x
=>
L.H.S
1/( 1 + Cos² x ) + Cos² x / (1 + Cos² x )
=>
{ 1 + Cos² x }
_________
{ 1 + Cos² x }
= 1
L.H.S = R.H.S
Hence, proved
_______________________________
Replace 2 - Sin² x = 2 - ( 1 - Cos² x )
= 1 + Cos² x
And
Replace Tan² x by Sin² x / Cos² x
=>
L.H.S
1/( 1 + Cos² x ) + Cos² x / (1 + Cos² x )
=>
{ 1 + Cos² x }
_________
{ 1 + Cos² x }
= 1
L.H.S = R.H.S
Hence, proved
kashyap4798:
Thank you so much brother......
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