Question

Cosec(π/4+A/2)Cosec(π/4-A/2)​

Answer 1

Answer:

2cosπ4+x2-π4+x2-cosπ4+x2+π4-x2

Step-by-step explanation:

cosecπ4+x2cosecπ4-x2=22sinπ4+x2sinπ4-x2=2cosπ4+x2-π4+x2-cosπ4+x2+π4-x2 Using the formula cosA-B-cosA+B=2sinAsinB=2cosx+cosπ2=2secx