Proof:1 +cot²∅=cosec²∅/ proof that
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1 + cot² Ф = cosec² Ф [ Proved ]
Step-by-step explanation:
Given :
1 + cot² Ф = cosec² Ф
L.H.S. = 1 + cot² Ф
= > 1 + cos² Ф / sin² Ф
= > ( sin² Ф + cos² Ф ) / sin² Ф
We know :
sin² Ф + cos² Ф = 1
= > 1 / sin² Ф
= > cosec² Ф
L.H.S. = R.H.S.
Hence proved.
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