Question

$\sin(a) + \sin( {a}^{2} ) = 1 \: then \\ \cos(a ) =$
value of cos(a)​

Answer 1

Answer:

sin a + sin^2 a =1

=> sin a + 1 - cos^2 a= 1

=> cos^2 a = sin a

=> cos a = √sin a

hope it helps ❤✌