please solve this question..........
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Step-by-step explanation:
cosec Ф + cot Ф = p
1/ cosec Ф + cot Ф = 1/p
Rationalise by taking conjucate,
1 x cosec Ф - cot Ф = 1
cosec Ф + cot Ф x cosec Ф - cot Ф p
∴ cosec Ф - cot Ф = 1/ p ( since in denominator, cosec²Ф - cot²Ф =1 )
cos Ф = p² - 1/ p² + 1
= p ( p - 1/ p)
p ( p + 1/p )
= cosec Ф + cot Ф - cosec Ф + cotФ
cosec Ф + cot Ф + cosec Ф - cot Ф
= 2 cot Ф
2 cosec Ф
= cos Ф x sinФ
sinФ
= cos Ф
Hence Proved
Ankitchorgade83:
thanks
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