Question

is 2sinA=1+sinA?

is it a formula​

Answer 1

$2sin(a)$  ≠  $1+sin(a)$

We can verify this too.

Let's take "a" to be 30°.

LHS:                                                             RHS:

$2sin(30)\\\\2(\frac{1}{2}) \\\\1$                                                          $1+sin(30)\\\\1+\frac{1}{2} \\\\\frac{3}{2}$

LHS ≠ RHS