Let me first write the formulas

Tan 60 degree = Sin60 degree /Cos60 degree

Sec 60 degree = 1/because 60 degee

Cot 60 degree = 1/tan 60 degree

We know that

Sin 60 Degree = Sq root (3)/2

because 60 Degree = 1/2

A) Tan 60 degree = Sin60 degree /Cos60 degree

= (Sq root (3)/2) /(1/2)

= (Sq root (3)/2) x(2)

=Sq root (3)

B) Sec 60 degree = 1/because 60 degree

=1/(1/2)

=2

C) Cot 60 degree = 1/tan 60 degree

Where in Part (A) we came to know that Tan 60 degree =Sq root (3)

therefore

Cot 60 degree = 1/ Sq root (3)

Tan 60 degree = Sin60 degree /Cos60 degree

Sec 60 degree = 1/because 60 degee

Cot 60 degree = 1/tan 60 degree

We know that

Sin 60 Degree = Sq root (3)/2

because 60 Degree = 1/2

A) Tan 60 degree = Sin60 degree /Cos60 degree

= (Sq root (3)/2) /(1/2)

= (Sq root (3)/2) x(2)

=Sq root (3)

B) Sec 60 degree = 1/because 60 degree

=1/(1/2)

=2

C) Cot 60 degree = 1/tan 60 degree

Where in Part (A) we came to know that Tan 60 degree =Sq root (3)

therefore

Cot 60 degree = 1/ Sq root (3)