Cosec A÷Cosec A-1+(Cosec A÷Cosec A+1
Answers
Answered by
44
Correct Question :
- Prove cosec A / cosec A-1 + cosec A / cosec A + 1 = 2 sec² A
Solution :
→ cosec A / cosec A - 1 + cosec A / cosec A + 1
→ cosec A ( cosec A + 1+cosec A - 1 /cosec² A - 1 )
→ cosec A ( 2 cosec A / cot² A )
→ 2 cosec² A / cot² A
→ 2 × 1/sin² A ( sin² A / cos² A )
→ 2 / cos² A
→ 2 sec² A
LHS = RHS
Hence proved
mysticd:
Use = symbol instead of implies
Answered by
387
Correct question :
Calculation :
LHS = RHS
Hence proved
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