Question

If cos alpha is equal to sin alpha and 5 alpha <90°,then value of tan 2 alpha is ​

Answer 1

Answer:

2

Explanation:Cos ALPHA is equal to Sin ALPHA

 So,

          Tan 2 ALPHA =?

     or      Tan(ALPHA + ALPHA)

     or       Tan ALPHA( 1+1)

     or          Sin ALPHA/Cos ALPHA (1+1)

      or           1*2

        or          2