plz solve this !!!!
Attachments:
Answers
Answered by
3
Step-by-step explanation:
cosec^2(A)-1 = cot^2(A)(cosecA-1)(cosecA+1)=cot^2(A)
cosecA+1 = cot^2(A)/(cosecA-1)
now LHS =
cotA +1+ [cot^2(A)/(cosecA-1)]/(cotA+ cosecA-1)
proceed ....
Answered by
16
Step-by-step explanation:
[ Refer to the attached file ]
- Used formulas :-
° ( a + b - c )² = a² + b² + c² + 2ab - 2bc -2ca
° Sin²x + Cos²x = 1
° In step 3rd , multiplying by numerator and denominator by the conjugate of numerator !!
Attachments:
Similar questions