Question

Seco = 1/2
, find
the value
of
sino -coseco

Answer 1

Answer:

4/√-3 is the correct answer

Step-by-step explanation:

sec@ = 1/2

cos @ =2

sin@ - cosec@ = sin@ - 1/sin@

= sin^2@ -1

sin@

= cos^2@/ sin@ = 4/sin@ ------> eq.1

sin^2@ + cos^2@ = 1

sin^2@ = 1-cos^2@

sin^2@ = 1-4

sin^2@ = -3

sin@ = √-3

eq.1=>sin@ - cosec@ = 4/√-3