Which of the following is equivalent to 5cossec3tancot a 8 b

Which of the following is equivalent to 5cos()sec()3tan()cot()?

a) 8

b) 8

c) 2

d) 2

Solution

5cos()sec()3tan()cot()

= 5cos()sec() 3(tan())(cot())

= 5cos()sec() 3tan()cot()

=5 3

=8