Question

IV
Q. 5. Prove that:
cosec0 coseco
= 2 sec?
cosec 0-1 cosec 0+1​

Answer 1

Step-by-step explanation:

using identity a2-b3=(a-b) (a+b)

TAKING LHS

(COSCE 0 - 1) (COSEC 0+1)

=(COSEC 0)2

=COSEC 0 COSEC 0

= 2SEC 0

Hence Proved

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