Question

If Cot2a=tan(n-2)a then what is a

Answer 1

Answer:90°

Step-by-step explanation:

Cot 2A = tan (n-2) A

Cot 2A = tan (90-n+a ) A

2a = 90-na+2a

Na = 90°

Answer 2

Therefore, a is 90/n.

Given:

cot2a = tan(n - 2)a

To find:

What is a

Solution:

We can simply solve this mathematical problem by using the following method.

Now,

cot2a = tan(n - 2)a

⇒ cot2a = cot {90 - (n -2)a}

⇒ 2a = 90 - na + 2a

⇒ na = 90

∴ a = 90/n

Therefore, a is 90/n.

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