Answers

2015-08-30T19:22:59+05:30
CosecA-sinA=√5...........(1)
cosecA+sinA=x.........(2)

 cosecA-sinA=√5
 cosecA+sinA=x
----------------------------
2cosecA        =√5+x..............(3)


cosecA-sinA=√5
cosecA+sinA=x
-----------------------------------
-2sina=√5-x...........(4)

(3)×(4)

2cosecA×(-2sinA)=(√5+x)×(√5-x)
-(2×2)cosecAsinA=(√5)²-(x)²
-4cosecAsinA=5-x²
-4=5-x²
x²-4-5=0
x²-9=0
x=√9
x=3


3 2 3