Question

please anyone help me understand this sum?​

Answer 1

Answer:

A is less than B .

Step-by-step explanation:

we all know that the formula of

Cot (A-B ) = cot A cot B + 1/ cot A - cot B that's why Cot (60-30)=cot 30 = √3

and tan 30 = 1/√3 so B is greater than A