Question

If cot a = tan (n-1)a than show that one value of a is pie/2n

Answer 1

Answer:

Step-by-step explanation:

//cot a can be written as tan (90° - a) i.e tan (π/2 - a)

tan (π/2 - a) = tan (an-a)

π/2 - a = an - a

π/2 = an - a + a => an

an = π/2

a = π / 2n